A study of infant mortality from linked records: method of study and registration aspects : United States, 1960 live birth cohort /

by Chase, Helen C.
Published 1970

A study of infant mortality from linked records : comparison of neonatal mortality from two cohort studies, United States, January-March 1950 and 1960 /

by Chase, Helen C.
Published 1972

International comparison of perinatal and infant mortality : the United States and six west European countries /

by Chase, Helen C.
Published 1967

Trends in "prematurity" : United States : 1950-67 /

by Chase, Helen C., Byrnes, Mary E.
Published 1972

Vital signs present at birth /

by Chase, Helen C., Weiner, Louis, Garfinkel, Joseph
Published 1972