June 1997 in “The American Journal of Cosmetic Surgery” Scalp flaps are still a valuable hair loss treatment because of their benefits.
April 2019 in “Advances in Cosmetic Surgery” The document concludes that ongoing medical therapy is crucial for preventing hair loss, and surgical options can restore hair, with future treatments for hair loss being promising.
March 2013 in “Revista Brasileira de Cirurgia Plástica” Using platelet growth factors can improve hair density in transplants, especially for those with fine hair.