Source:
Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine] [Zhonghua Yu Fang Yi Xue Za Zhi] 2019 Jan 06; Vol. 53 (1), pp. 1-3.Publisher: Zhonghua yi xue hui Country of Publication: China NLM ID: 7904962 Publication Model: Print Cited Medium: Print