research Donor Site Reharvesting in Patients Whose Donor Sites Appear Exhausted June 1997 in “The American Journal of Cosmetic Surgery” Reharvesting hair from donor sites using punch and strip methods can provide more hair for transplants and improve scar appearance.
research Total Excision Techniques in Donor Area Harvesting for Hair Transplanting 8 citations , March 1994 in “The American Journal of Cosmetic Surgery” The Total Excision Techniques improve hair transplant results by increasing grafts by at least 50% and reducing scarring.