Small-for-gestational age births in successive pregnancy outcomes: results from a longitudinal study of births in NorwayBakketeig, Tor Bjerkedal, Howard HoffmanJan-12-1986Tijdschriftartikel
Estimating a woman's risk of having a pregnancy associated with Down's syndrome using her age and serum alpha-fetoprotein level.Cuckle, Wald, Thompson1987 MayTijdschriftartikel
Physical activity, exercise, and physical fitness: definitions and distinctions for health-related researchCaspersen, Powell, Christenson1985 Mar-AprTijdschriftartikel
Self-rated health and associated factors among men of different ages.Jylhä, Leskinen, Alanen, Leskinen, Heikkinen1986 NovTijdschriftartikel