TY - JOUR IS - 5 JA - Chin J Integr Med JO - Chinese Journal of Integrative Medicine PY - 2017 SN - 1672-0415 VL - 23 AU - Zhou LY AU - Zhang HX AU - Lan YL AU - Li Y AU - Liang Y AU - Yu L AU - Ma YM AU - Jia CW AU - Wang SY DO - 10.1007/s11655-015-2144-z LA - en N1 - FEMU ID: 26896; EMF-Portal URL: https://www.emf-portal.org/en/article/26896 SP - 345-349 TI - Epidemiological investigation of risk factors of the pregnant women with early spontaneous abortion in Beijing ER -