Commentary: Balancing quantity and quality when designing epidemiological studies.
Phillips
Andrew
A
Royal Free Centre for HIV Medicine & Department of Primary Care & Population Sciences, Royal Free & University College Medical School, University College London, London, UK.
D003625:Data Collection; D004781:Environmental Exposure; D015340:Epidemiologic Research Design; D020022:Genetic Predisposition to Disease; D006801:Humans; D018401:Sample Size