1. Laboratory of Stem Cell & Developmental Biology, Department of Histology and Embryology Army Medical University, Chongqing, People's Republic of China
2. Department of Paediatrics The General Hospital of PLA Tibet Military Area Command, Lhasa, People's Republic of China
3. Southwest Hospital/Southwest Eye Hospital, The First Hospital Affiliated to Army Medical University, Chongqing, People's Republic of China
4. Experimental Center of Basic Medicine College of Basic Medical Sciences, Army Medical University, Chongqing, People's Republic of China
5. Thoracic Surgery Department Southwest Hospital, The First Hospital Affiliated to Army Medical University, Chongqing, People's Republic of China
6. Cardiac Surgery Department Southwest Hospital, The First Hospital Affiliated to Army Medical University, Chongqing, People's Republic of China