Cohort profile: The Singapore Breast Cancer Cohort (SGBCC), a multi-center breast cancer cohort for evaluation of phenotypic risk factors and genetic markers. oleh Peh Joo Ho, Yen Shing Yeoh, Hui Miao, Swee Ho Lim, Ern Yu Tan, Benita Kiat Tee Tan, Veronique Kiak Mien Tan, Su Ming Tan, Wei Sean Yong, Fuh Yong Wong, Preetha Madhukumar, Ching Wan Chan, Philip Tsau Choong Iau, Soo Chin Lee, Thomas Putti, Shaik Ahmad Buhari, Jin Yee Lee, Geok Hoon Lim, Evan Woo, Zhiyan Yan, Patrick Mun Yew Chan, Juliana Jia Chuan Chen, Sarah Qinghui Lu, Rebecca Dent, Wai Peng Lee, Chi Wei Mok, Jaime Chin Mui Seah, Xueling Sim, Rob Martinus van Dam, Kee Seng Chia, Jingmei Li, Mikael Hartman