TY - GEN AU - Combs,C Andrew TI - Vaginal progesterone for asymptomatic cervical shortening and the case for universal screening of cervical length SN - 1097-6868 PY - 2012///0719 KW - Female KW - Humans KW - Pregnancy KW - Premature Birth KW - prevention & control KW - Progesterone KW - therapeutic use KW - Progestins N1 - Publication Type: Editorial; Comment UR - https://doi.org/10.1016/j.ajog.2011.12.008 ER -