The сollection of scientific works  Hematology and Blood Transfusion publishes peer-reviewed articles that represent completed research and contain new findings in the fields of hematology, clinical and industrial transfusiology, or reviews of the current state and pressing issues in these areas. Submitted articles must not have been previously published elsewhere.

Articles are published in Ukrainian or English.

MANUSCRIPT SUBMISSION GUIDELINES
To have an article considered for publication in the journal, authors must submit the following materials by mail or in person to the editorial office:

1. A printed copy of the manuscript in Ukrainian or English, signed on the last page by all authors;
2. Information about all authors, including full name, academic degree, academic title, position, and place of employment (in Ukrainian or English), as well as the ORCID ID, if available;
3. A cover letter or submission request from the institution where the work was conducted (or a letter from the author(s));
4. The following must also be submitted electronically:
   • An electronic version of the article, identical to the printed version. The file name should be the surname of the first author;
   • Author information.

Electronic versions of the manuscript should be sent by email to the editorial office at: igt2@ukr.net.
The length of an original article should not exceed 12–15 pages; for a review article, 20–25 pages. A longer manuscript may be accepted on an individual basis, subject to the decision of the editorial board.

PEER REVIEW

All submitted articles undergo mandatory peer review by independent experts who are specialists in the relevant field of science.
The final decision regarding the suitability of an article for publication is made by the editorial board.
Manuscripts will not be returned to the authors.
Original copies of the articles and their reviews are retained by the editorial office for three years from the date of publication.

TECHNICAL REQUIREMENTS FOR ARTICLE TEXT
Articles must be prepared using MS Word for Windows with the following formatting: Times New Roman font, 14-point size, 1.5 line spacing, A4 paper size (210 × 297 mm). Page margins should be: top and bottom – 2 cm; left – 3 cm; right – 1 cm. Paragraph indentation should be 1.25 cm. Do not use spaces or tab characters for paragraph or heading formatting.

In numerical ranges, use only an en dash (–) with no spaces before or after the numbers.
The symbols №, %, ‰, and mathematical signs (±, ?, :, =, >, <, etc.) must be separated from numbers with a non-breaking space.

All designations and names of physical units must comply with the International System of Units (SI). If the research was conducted using instruments that provide measurements in non-SI units, these must be converted into SI units, with the original units provided in parentheses.

Disease names should follow the latest revision of the International Classification of Diseases (ICD); names of pharmaceutical substances should conform to International Nonproprietary Names (INN).

Abbreviations (in capital letters only) should be introduced in the text only after the first mention with the full phrase spelled out.
Data presented in tables should not duplicate the data from figures or the text, and vice versa.

Original research articles must contain the following clearly defined sections:

1. Introduction;
2. Objective of the study;
3. Materials and methods;
4. Results and discussion;
5. Conclusions;
6. Information on sources of research funding;
7. Acknowledgments (if applicable);
8. Disclosure of conflicts of interest;
9. References.

Review articles may be either unstructured or organized into sections with thematic subheadings.

ORDER OF CONTENT PRESENTATION IN THE ARTICLE:

1. UDC (Universal Decimal Classification) index;
2. Article title;
3. Authors’ surnames and initials;
4. Full official name(s) of the institution(s) where the research was conducted;
5. Abstract;
6. Keywords – 5 to 10 words or phrases reflecting the content of the article;
7. Main text of the article;
8. References.

For articles written in Ukrainian, items 2–6 must also be provided in English after item 6.

The title of the article must be as brief and informative as possible, without abbreviations or the use of commercial names of medicinal products.
Word hyphenation is not allowed in titles at any level, including table headings.

If the authors are affiliated with different institutions, a superscript number should be placed after each author’s surname to indicate the corresponding institution. The author responsible for correspondence should be marked with an asterisk (*) next to the superscript number. This author must clearly indicate whether their email address may be published with the article.

On the last page, the corresponding author should provide their full name, postal and email addresses, and telephone numbers (work or mobile) for editorial contact.

The abstract for original articles (at least 1,800 characters without spaces) must be structured as follows:
a) Objective of the study;
b) Materials and methods;
c) Results;
d) Conclusions.

Abstracts of review articles are unstructured.
Abbreviations are not permitted, except for commonly accepted ones.

Article Text
The article must be carefully edited and thoroughly reviewed by the authors. The presentation of the material should be clear, concise, and free from lengthy introductions or repetitions. Authors bear full responsibility for the content and the accuracy of the data presented in the article.

Original research articles must include the following clearly defined sections:

1. Introduction
2. Objective of the study
3. Materials and methods
4. Results and discussion
5. Conclusions
6. References

Review articles may be unstructured or divided into thematic sections.

Introduction
Justification of the study. Briefly outlines the general background of the problem and its connection with important scientific or practical challenges. Includes an analysis of recent studies and publications in which this problem has been initiated and which the author relies on, and identifies previously unresolved parts of the overall problem addressed in the article.

Objective of the Study
The aim or objectives of the research. 

Materials and Methods
The research design and data analysis must be described briefly but clearly enough to allow replication of the study by other researchers. Reference should be made to well-established methods, a brief description and citation of published but lesser-known methods, and a detailed description of new or significantly modified methods, with justification for their use. Only new methods should be described in detail.
The names of equipment, materials, and reagents, as well as the manufacturers’ names, must be provided in the original language (without translation).

This section should clearly and in detail describe how patients for observations or animals for experiments (including control groups) were selected, including inclusion and exclusion criteria.

In experimental studies, the species, sex, and number of animals should be specified, as well as the methods of anesthesia for procedures or sample collection, materials for laboratory investigations, euthanasia methods, in accordance with the European Convention for the Protection of Vertebrate Animals used for Experimental and Other Scientific Purposes (1986) (http://zakon5.rada.gov.ua/laws/show/994_137) and the “Regulations on Conducting Scientific Research and Experiments on Animals” (Order of the Ministry of Education and Science, Youth, and Sports of Ukraine No. 249, dated 01.03.2012) (https://zakon.rada.gov.ua/laws/show/z0416-12#Text).

Clinical studies must be conducted in accordance with the “Good Clinical Practice” standards and the principles of the Helsinki Declaration of the World Medical Association, “Ethical Principles for Medical Research Involving Human Subjects” (https://zakon.rada.gov.ua/laws/show/990_005). Study participants must be informed of the purpose and key points of the research, and they must sign a written consent to participate in the study.

Authors are required to provide details of the procedure described in the study protocol and indicate that the protocol has been approved by the Medical Ethics Committee.

At the end of the “Materials and Methods” section, a subsection titled “Statistical Analysis of Data” should be included, stating which data processing methods were used by the author(s). When describing the study structure and statistical methods, the statistical package and computer programs used for statistical analysis of results, accessible to ordinary users, should be specified.

Whenever possible, the use of standard statistical methods is recommended, with references to known manuals and textbooks. For unconventional or new statistical methods, appropriate references should be provided, detailing the mathematical methods and algorithms used.

Results and Discussion
The results section should present the core findings of the study with a complete justification of the obtained scientific results.

Results should be presented in a logical sequence in the text, tables, and figures. It is not necessary to repeat the data from tables and figures in the text, but only to compare them. When summarizing quantitative data, both relative (e.g., percentages) and absolute values should be provided, and the statistical methods used for their analysis should be stated.

The discussion section should contain the interpretation of the results, not their repetition. The new and important aspects of the study findings should be highlighted, with analysis of possible mechanisms or interpretations of these data. If possible, compare the results with those of other researchers. The discussion may include well-grounded recommendations for practice and potential applications of the findings in future research.

Illustrations
Figures should be clear, and photographs should be contrasting. Figures are placed directly in the text of the article, with figure titles and captions provided below the figures. The captions should explain all curves, letters, numbers, and other symbols used. References to the main text are allowed to avoid repetition and inaccuracies. For micrographs, the magnification level and staining method should be indicated in the captions.

Figures (schemes, graphs, diagrams, photographs) can be submitted in black-and-white or color format. Graphs and diagrams should be created as Word charts or in MS Excel format. They must include all necessary labels for coordinate axes, curves, and other details.

All lines, curves, symbols, and axis labels must be depicted clearly (curve lines should be thicker than coordinate axis lines). If figures consist of multiple elements, they should be grouped accordingly.

Tables
Tables should be clear, have a title and a sequential number, and contain concise, necessary data. The units of measurement and the format for presenting data (e.g., M±m; M±SD; Mt; Mo; percentiles, etc.) must be clearly indicated. All numbers, totals, and percentages in tables must be carefully checked and correspond to references in the text. Each table must be referenced in the text. All explanations, including abbreviations, should be provided in footnotes. Table titles are placed above the tables, while footnotes are placed below them.

Conclusions
Conclusions should be formulated based on the results of solving the problem outlined in the title and the objective of the article.

Sources of Funding
All sources of funding for the research must be listed, including both direct and indirect financial support (such as the provision of equipment/materials, other forms of support). The names of the organizations that funded the research should be provided in full.

Acknowledgments
This section should acknowledge individuals, institutions, or organizations that contributed to the research and assisted in the preparation of the article.

Conflict of Interest
The article must disclose any actual or potential conflicts of interest. If there is no conflict of interest, it should be stated: “The author(s) declare(s) no conflict of interest.”

The Structuring of Reviews, Lectures, Discussion Articles, Case Observations, and Methodological Reports
The structure of reviews, lectures, discussion articles, case observations, and methodological reports can be flexible. Reviews should comply with international recommendations for systematic literature search methods, which are publicly available through PRISMA guidelines. Clinical observations should be formatted according to the CARE guidelines.

The formatting procedure for English-language articles is the same.

References
When working with information sources, preference should be given to publications from recent years. If the cited article has a DOI identifier, it must be included at the end of the reference. If the cited source does not have a DOI but is available online, the URL should be included in the reference.

References should be listed in the order in which they are mentioned in the text. In-text citations should be indicated with Arabic numerals in square brackets. The author(s) is/are responsible for the accuracy of the data presented in the reference list.

The reference list in the article should be formatted according to the Vancouver style (https://www.scribbr.co.uk/referencing/vancouver-style/) in the original language. For non-English articles, the English version of the bibliographic description should be placed in square brackets after the title.

Each source should be placed on a new line under its corresponding number, which is indicated in the text with Arabic numerals in square brackets. The maximum number of references for original articles is up to 30, and for reviews — up to 50. Avoid self-citations or minimize them. Also, try to minimize references to conference abstracts. Journal titles can be abbreviated if this is the format used on the journal’s website.

Ethical Issues
Authors submitting a manuscript to the scientific journal “Hematology and Blood Transfusion” for review must guarantee compliance with all publication ethical standards and ethical norms.

The editorial board reserves the right to conduct scientific and literary editing of the article.

Articles that do not meet the specified formatting requirements will not be considered.

After the article is accepted for publication by the editorial board, the authors will be sent a license agreement, which must be completed and signed, then submitted to the editorial office in two copies.