Selection bias and the use of controls with malformations in case-control studies of birth defects.

Lieff, S

Selection bias and the use of controls with malformations in case-control studies of birth defects. [electronic resource] - Epidemiology (Cambridge, Mass.) May 1999 - 238-41 p. digital

Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.

1044-3983


Boston--epidemiology
Case-Control Studies
Cleft Lip--epidemiology
Cleft Palate--epidemiology
Congenital Abnormalities--epidemiology
Environmental Exposure--adverse effects
Female
Humans
Infant, Newborn
Ontario--epidemiology
Philadelphia--epidemiology
Population Surveillance
Pregnancy
Pregnancy Complications
Pregnancy Trimester, First
Prevalence
Research Design
Risk Factors
Selection Bias
Smoking--adverse effects