Clinical research in rheumatology 2012-2013: methodologic considerations in study design.
Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Allan C
AC
Gelber
D035843:Biomedical Research / Q000639:trends; D006801:Humans; D012107:Research Design / Q000639:trends; D012216:Rheumatic Diseases / Q000175:diagnosis / Q000628:therapy; D012219:Rheumatology / Q000379:methods / Q000639:trends*