Table 3.

Median total authors and equal authors in original research articles with authors given equal credit, 2000-2009

	NEJMa	JAMAb	Annalsc	Lancet	BMJd
Median (range) Number of Authors Listed in Byline	13 (4-46)	11 (2-69)	8 (3-23)	11 (2-33)	4 (2-29)
Median (range) Number of Equally Credited Authors	2 (2-10)	2 (2-14)	2 (2-4)	2 (2-23)	2 (2-12)

^aNew England Journal of Medicine

^bJournal of the American Medical Association

^cAnnals of Internal Medicine

^dBritish Medical Journal