Bivariate genome-wide association analyses identified genes with pleiotropic effects for femoral neck bone geometry and age at menarche. oleh Shu Ran, Yu-Fang Pei, Yong-Jun Liu, Lei Zhang, Ying-Ying Han, Rong Hai, Qing Tian, Yong Lin, Tie-Lin Yang, Yan-Fang Guo, Hui Shen, Inderpal S Thethi, Xue-Zhen Zhu, Hong-Wen Deng