Use the author’s surname followed by initials without periods. In listed references, the names of all authors should be given unless there are more than 6, in which case the names of the first 3 authors are used, followed by “et al.” Note: The NLM guidelines do not limit the number of authors listed but, for space considerations, we have elected to depart from the NLM guidelines on this point.Note spacing and punctuation. Do not use and between names. Roman numerals and abbreviations for Junior (Jr) and Senior (Sr) follow author’s initials. Note: Although NLM uses “2nd,” “3rd,” and “4th,” ...
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