1. Biomedical and Neuromotor Sciences Department; University of Bologna; Bologna Italy
2. Burns Centre and Emilia Romagna Regional Skin Bank; Cesena Italy
3. Department of Bioengineering; Imperial College London; London U.K.
4. Centre for Cell Biology and Cutaneous Research; Barts and the London School of Medicine and Dentistry; Queen Mary University London; London U.K.
5. Farjo Hair Institute; Manchester U.K.