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To the Editor: Ms Flanagin and colleagues¹ described THE JOURNAL's criteria for authorship for research groups. Studies done by research groups from multiple sites often lead to superior results because of the ability to recruit a larger sample size and the enhanced generalizability of the results. Such studies require the combined efforts of many coinvestigators from multiple sites. These coinvestigators oversee the development of the study at their individual sites including the subject recruitment, administration of the intervention, data collection, data entry, and in many cases, review and critique of the manuscript. Nonetheless, some coinvestigators may not meet the criteria for authorship described by Flanagin et al.

Furthermore, many other journals limit their bylines to a total of only 6 authors. Thus, it must be determined how to acknowledge the efforts of coinvestigators who are not among the primary authors. For coinvestigators in academic settings, such documentation is critical for . . . [Full Text of this Article]

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