TY  - JOUR
A1  - Maccoby, E.E.
A1  - Doering, C.H.
A1  - Jacklin, N.C.
A1  - Kraemer, H.
T1  - Concentration of sex hormones in umbilical cord blood: Their relation to sex and birth order of infants
Y1  - 1979
DO  - 10.2307/1128928
JF  - Child Development
VL  - 50
IS  - 3
SP  - 632
EP  - -642

ER  -