Yes Lai Wei, male, chief physician, professor, director of dermatology, doctoral supervisor. Gong Zijian, male, Deputy Chief Physician of Dermatology, Third Affiliated Hospital of Sun Yat-sen University, MD, engaged in clinical work 10 years. Gong Zijian is Lai Wei's apprentice. Member of the Stem Cell Clinical Research Committee of the Third Affiliated Hospital of Sun Yat-sen University, and Director of the Laser Beauty Treatment Center in Dermatology.