TY - GEN AU - Li,D K TI - Changing paternity and the risk of preterm delivery in the subsequent pregnancy SN - 1044-3983 PY - 1999///0422 KW - Adult KW - Female KW - Histocompatibility KW - Histocompatibility Testing KW - Humans KW - Obstetric Labor, Premature KW - Paternity KW - Pregnancy KW - immunology N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S ER -