
Changes in maternal mortality rate and principal component analysis of health care status in Lanzhou City, 2003-2018
BAI Jin, YANG Yan-jun, BAI Qing-li, ZHANG Jun, ZHENG Rong, LIANG Fang, LI Zhi-lan
Practical Preventive Medicine ›› 2021, Vol. 28 ›› Issue (8) : 911-914.
Changes in maternal mortality rate and principal component analysis of health care status in Lanzhou City, 2003-2018
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