K. F. Yu

Maternal vitamin levels during pregnancies producing infants with neural tube defects.

M. Forman, W. Blaner, J. Tuomilehto, 1992, The Journal of pediatrics.

Birth weight, gestational age and perinatal mortality: biological heterogeneity and measurement error.

H. Hoffman, L. Bakketeig, C. Krulewitch, 1993, Early human development.

Evaluation of the effectiveness of a community-based enriched model prenatal intervention project in the District of Columbia.

M. Overpeck, H. Berendes, J. Maxwell, 1996, Health Services Research.

Does changing paternity contribute to the risk of intrauterine growth retardation?

C. Krulewitch, A. Herman, K. F. Yu, 1997, Paediatric and perinatal epidemiology.

Adolescent age at first pregnancy and subsequent obesity.

A. Herman, K. F. Yu, 1997, Paediatric and perinatal epidemiology.