Reports on the prevalence of clinical conditions are more convincing when supported by objective evidence.
Schachter
Julius
J
Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA. Julius.Schachter@ucsf.edu
Bailey
Robin
R
Dawson
Chandler R
CR
Lietman
Thomas M
TM
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D016000:Cluster Analysis; D004282:Documentation / Q000592:standards; D055317:Evidence-Based Practice; D006306:Health Surveys; D006801:Humans; D007223:Infant; D015995:Prevalence; D015203:Reproducibility of Results; D013397:Sudan / Q000453:epidemiology; D014141:Trachoma / Q000453:epidemiology*