1. Follicular transplantation;Bernstein;Int J Aesthet Rest Surg,1995
2. Is it X-factor or H-factor;Greco;Hair Transplant Forum Int,1994
3. The H-factor in micrografting procedures;Greco;Hair Transplant Forum Int,1996
4. Loss of the dermal papilla during graft dissection and placement: another cause of X-factor;Cooley;Hair Transplant Forum International,1997
5. Micrografting in extensive quantities. The ideal hair restoration procedure;Rassman;Derm Surg,1995