The critical role of Hedgehog-responsive mesenchymal progenitors in meniscus development and injury repair oleh Yulong Wei, Hao Sun, Tao Gui, Lutian Yao, Leilei Zhong, Wei Yu, Su-Jin Heo, Lin Han, Nathaniel A Dyment, Xiaowei Sherry Liu, Yejia Zhang, Eiki Koyama, Fanxin Long, Miltiadis H Zgonis, Robert L Mauck, Jaimo Ahn, Ling Qin