The manuscript must be word-processed, double-spaced throughout, with a 2.5 cm margin all around, with no ’headers and footers’ (other than page numbers), and without footnotes unless these are absolutely necessary. Use Arial or Times New Roman font, size twelve (12) point font.
All experimental work in which humans are participants must conform to the laws of the country in which the work took place. The manuscript should contain a statement to the effect that the work reported has been approved by a local ethics committee or review board. The statements about ethics approval or sources of data should be made at the beginning of the methods section.
Manuscripts should be compiled in the following order: title page; abstract; keywords; main text; acknowledgments; references; list of table(s), caption(s), and figure(s), legend(s) (on individual page at the end of the manuscript). The table(s) and figure(s) have to be uploaded as separated file(s). The main text can be arranged under headings such as Introduction, Methods, Results, Discussion and Conclusion if this is appropriate. All headings (including the Title) should be in sentence-case only, not in capital letters. Number the pages consecutively, beginning with the title page as page 1 and ending with the Figure pages. 6000 word count limit (including title, abstract, acknowledgements, and References).
Include the following information on the first page of the manuscript: the full title; a running title of no more than 75 characters and spaces. List all authors by first name, all initials and last name. List departmental affiliations of each author affiliated with institutions where the study described was carried out. Connect authors to departments using numbers superscripts. Contributions of the author and each co-author considering the following categories: A - Study Design; B - Data Collection; C - Statistical Analysis; D - Manuscript Preparation; E - Funds Collection. No names of co-authors will be published unless their contributions are indicated. Connect authors to contributions using alphabetic superscripts.
Provide the name, full address and email address of the corresponding author to whom communications, proofs and requests for reprints should be sent. Provide up to five keywords for indexing purposes.
The abstract should be placed on individual page (second page of the manuscript) and must not exceed 200 words and it must summarize the paper, giving a clear indication of the conclusions it contains.
Tables and illustrations
Illustrations (photographs and line drawings) and tables must be included in the text file as well as uploaded as separated file(s) when submitting. Table(s) files should be prepared as .doc files. Tables, referred to as ’Table 1’, ’Table 2’, and so on, must be numbered in the order in which they occur in the text. Figures and illustrations should be prepared referred to as ’Figure 1’, ’Figure 2’, and so on, and must be numbered in the order in which they occur in the text. Diagrams and drawings should be produced using a computer drawing or graphics package at the appropriate resolution. It is in the Author's interest to provide the highest quality figure format possible. Color figures will be reproduced in the online edition of the journal free of charge, in the print version all figures will be reproduced in the greyscale. If you wish to have figures in color online and black and white figures printed, please prepare both versions.
All references must be alphabetized by the surname of the first author and numbered at the end of the article. Please use APA style for references and citations (see the file “Creating references in APA English” and “Styl APA-WNUS Polish” for Polish authors)
Every submission, regardless of category must include a letter stating the category of article (Original Research, Review Article or Short Communication) and sources of outside support for research (including funding, equipment and drugs) must be named. Financial support for the project must be acknowledged, or "no external financial support" declared.