1. Division
of Histology and Embryology, Key Laboratory for Regenerative Medicine
of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China
2. Institute
of Vascular Biological Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China
3. Division
of Cell and Developmental Biology, University of Dundee, Dundee DD1 5EH, United Kingdom
4. Key
Laboratory for Regenerative Medicine of the Ministry of Education,
School of Biomedical Sciences, Chinese University of Hong Kong, Shatin, Hong Kong, China