Knowledge, attitude and practice level of women at the periconceptional period: a cross-sectional study in Shaanxi China.
Li, Danyang.
Huang, Liyan.
Yang, Wenfang.
Qi, Cuifang.
Shang, Li.
Xin, Juan.
Zeng, Lingxia.
Zhang, Min.
Song, Hui.
Chung, Mei Chun.
2019