TY  - JOUR
A1  - Almond, D.
A1  - Edlund, L.
T1  - Trivers–Willard at birth and one year: Evidence from US natality data 1983–2001
Y1  - 2007
DO  - 10.1098/rspb.2007.0524
VL  - 274
IS  - 1624

ER  -