TY - GEN AU - Grantz,Katherine L AU - Hinkle,Stefanie N AU - Mendola,Pauline AU - Sjaarda,Lindsey A AU - Albert,Paul S TI - Five Authors Reply SN - 1476-6256 PY - 2016///0302 KW - Abortion, Habitual KW - epidemiology KW - Female KW - Humans KW - Pregnancy KW - Premature Birth N1 - Publication Type: Letter; Comment UR - https://doi.org/10.1093/aje/kwv277 ER -