Association between daily average temperature and preterm birth in Guangzhou area: a time-series analysis
LEI Ma-xiang,LIN Zi-xiong,YANG Jun,MIAO Hua-zhang,LIANG Zhi-jiang,MA Yuan-zhu,ZHAO Qing-guo
S China J Prev Med . 2015, (12): 337 -341 .  DOI: 10.13217/j.scjpm.2015.0337