TY - GEN AU - Sethi,D AU - Wheeler,J AU - Rodrigues,L C AU - Fox,S AU - Roderick,P TI - Investigation of under-ascertainment in epidemiological studies based in general practice SN - 0300-5771 PY - 1999///0526 KW - Adolescent KW - Adult KW - Aged KW - Aged, 80 and over KW - Analysis of Variance KW - Child KW - Child, Preschool KW - Disease Notification KW - statistics & numerical data KW - England KW - epidemiology KW - Family Practice KW - Female KW - Humans KW - Incidence KW - Infant KW - Infant, Newborn KW - Intestinal Diseases KW - Logistic Models KW - Male KW - Medical Audit KW - Middle Aged KW - Odds Ratio KW - Retrospective Studies N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1093/ije/28.1.106 ER -