Sinai School of Medicine in New York. He has private practices in Toronto. Canada and New York City. He authored chapters on hair transplantation in 34 medical texts (four of them from 2008 to 2010 and has written articles for numerous medical journals. His latest edition of Hair Transplantation 5th edition, (Informa Healthcare) was published in 2011. It is considered to be the standard reference textbook for hair transplant surgeons.