Kelly, ClintJennions, Michael2015-12-100028-0836http://hdl.handle.net/1885/50898Keywords: analytic method; bibliometrics; clinical research; letter; priority journal; publication; sex difference; Age Factors; Artifacts; Authorship; Bibliometrics; Efficiency; Research Personnel; Sex FactorsH-index: age and sex make it unreliable200710.1038/449403c2015-12-09