Soya food intake and risk of endometrial cancer among Chinese women in Shanghai: population based case-control study. - Wang Hong Xu,null.; Wei Zheng,null.; Yong Bing Xiang,null.; Zhi Xian Ruan,null.; Jia Rong Cheng,null.; Qi Dai,null.; Yu Tang Gao,null.; Xiao Ou Shu,null. (BMJ, 2004)