Rosero-Bixby L, Oberle MW, Lee NC. Reproductive history and breast cancer in a population of high fertility, Costa Rica, 1984-85. Int J Cancer. 1987 Dec 15;40(6):747-54.
Rosero-Bixby L, Oberle MW, Lee NC. Reproductive history and breast cancer in a population of high fertility, Costa Rica, 1984-85. Int J Cancer. 1987 Dec 15;40(6):747-54.