The status and influencing factors of physical activity among early pregnancy women
FENG Yahui, Lü Yan, MA Shuai, WU Sansan, SHEN Zhongzhou, WANG Yawen, MA Liangkun, JIANG Yu
Chinese Journal of Nursing . 2019, (8): 1184 -1188 .  DOI: 10.3761/j.issn.0254-1769.2019.08.013