Coaxial electrohydrodynamic printing of core–shell microfibrous scaffolds with layer-specific growth factors release for enthesis regeneration oleh Lang Bai, Meiguang Xu, Zijie Meng, Zhennan Qiu, Jintao Xiu, Baojun Chen, Qian Han, Qiaonan Liu, Pei He, Nuanyang Wen, Jiankang He, Jing Zhang, Zhanhai Yin