Instructions to Authors The publisher of Perinatology follows the American Medical Association (AMA) Manual of Style. The publisher requires that the manuscript (MS) be formatted and submitted along with legal documents as specified herein. Authors are expected to apply these basic instructions while preparing and submitting the MS. Guidelines for Manuscript Preparation FRONT MATTER Titles and subtitles Titles should be short, concise, specific, informative, and unique. A title should not be a complete/affirmative sentence. Author byline Provide full names of all authors. It is mandatory to expand initials. Correspondence The corresponding author will receive all communications and is responsible for resolving all queries pertaining to the MS. The corresponding author should be indicated with an asterisk (in the author byline). The correspondence details should contain the author’s designation and department; full name of organization/ institute; complete postal address including pin/zip code; author’s valid and active e-mail address; and phone and fax numbers. Abstract Abstracts are mandatory for articles in the categories of research, review, and case studies. For research and review articles, an abstract should summarize the main points of an article and should not exceed 200 words. The text should be structured under the headings: (1) Background and Aim, (2) Materials and Methods, (3) Results, and (4) Conclusion. For case studies, an abstract should summarize the diagnosis, treatment, and results in an unstructured format and should not exceed 200 words. Key words Key words are descriptors representing the key topics presented in the article. An article should have 6 to 10 key words. BODY TEXT Introduction The introduction should provide the objective of the study and state the hypothesis or research question, how and why the hypothesis was developed, and why it is important. The introduction should not contain extensive literature survey. Materials and methods This section should include a description of • Study design or type of analysis and period of study • Conditions, factors, or disease studied • Details of sample (eg, study participant and the setting from which they were drawn) • Intervention(s) • Outcome measures • Statistical analysis Results The results should be specific and relevant to the research hypothesis. This section should contain minimal text and data represented as tables and figures. Discussion This section should be a formal consideration and critical examination of the study. The results should be considered in this section in relevance with other similar studies. Conclusion This section should summarize the consensus statement. It may include benefits and limitations of the study. The type of future studies required, if appropriate, should be mentioned here. Tables and figures • Cite all tables/figures in the text in sequential order. • Provide appropriate Table/Figure captions. • Mention SI units for all parameters presented. GENERAL STYLE POINTS • Use US English spellings; refer Merriam-Webster’s online dictionary for spellings. • Italicize genus and species names. • Use SI units for all units of measure. • For materials procured from manufacturers, provide the full name of the company and location (city, state, country). • Provide dosage forms for all medications used in the study and at all instances mentioned. • Use the date format Month Day, Year. Abbreviations • Spell-out abbreviations at their first mention in the text. • Do not use abbreviations in titles and headings. • Use uppercase letters without periods for acronyms such as CHF, GFR, and WBC and also for routes of administration and dosage schedules such as PO, IV, BID, and TID. • Use abbreviations consistently, that is, mention the term or phrase at the first instance followed by the abbreviation in parentheses; use only the abbreviation thereafter. BACK MATTER Acknowledgment Only those who have made substantial contributions to the study and/or preparation of the MS should be acknowledged. Details of financial grants (including grant numbers), financial disclosures, conflict of interest, role of sponsor, and disclaimers should be included here. This section should be as brief as possible. References References should be cited in text to support arguments and lay the foundation for the theses and as sources of information. • Follow the Vancouver style of referencing (numbered references). • Cite all references in text, tables, and figures in numerical order using superscript Arabic numerals. • Original, research, and review articles can have a maximum of 20 references; case reports and case series can have a maximum of 8 references; and short communications can have a maximum of 10 references. • If a reference contains up to 3 authors in the author group, mention all names; if a reference contains more than 3 authors in the author group, mention only the first author’s name followed by “, et al” in the reference list. Journal in print Knobel RB, Wimmer JE Jr, Holbert D. Heat loss prevention for preterm infants in the delivery room. J Perinatol. 2005;25(5):304–308. Huurre A, et al. Mode of delivery – effects on gut microbiota and humoral immunity. Neonatology. 2008;93(4):236–240. Perinatology J o u r n a l o f P e r i n a t a l a n d N e o n a t a l C a r e
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