Author
Kovar, Mary Grace,
National Center for Health Statistics (U.S.),
10
Feldman, Jacob J.,
2
MacMahon, Brian, 1923-2007,
2
National Natality Survey (U.S.)
2
United States. Public Health Service,
2
Forbes, William F. 1924-
1
National Infant Mortality Survey (U.S.)
1
Timmer, Elaine J.,
1
Weeks, Julie Dawson,
1