Cohort studies in sexual health.
Sabin
C A
CA
Royal Free Centre for HIV Medicine, London, UK. c.sabin@pcps.ucl.ac.uk
Phillips
A N
AN
D015331:Cohort Studies; D003627:Data Interpretation, Statistical; D006801:Humans; D010352:Patient Dropouts; D011379:Prognosis; D012307:Risk Factors; D012749:Sexually Transmitted Diseases / Q000628:therapy