TY - GEN AU - Lund,E TI - Childbearing and breast cancer SN - 0140-6736 PY - 1993///0318 KW - Breast Neoplasms KW - etiology KW - Female KW - Humans KW - Parity KW - Pregnancy KW - Risk Factors N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1016/0140-6736(93)90266-j ER -