Factors associated with contraceptive nonuse among US women ages 35-44 years at risk of unwanted pregnancy.
Factors associated with contraceptive nonuse among US women ages 35-44 years at risk of unwanted pregnancy.
复制标题
与存在意外怀孕风险的 35-44 岁美国女性不采取避孕措施相关的因素。
作者：
K. Upson;S. Reed;S. Prager;M. Schiff
