1–4 hair grafts.
Follicular Unit Transplantation--surgically removed grafts containing 1-4 hair follicles that are genetically resistant to balding (from the back of the scalp) to be transplanted to a balding area.
Color Atlas of Cosmetic Dermatology
Marc R. Avram, Sandy Tsao, Zeina Tannous, Mathew M. Avram
Copyright 2007 by The McGraw-Hill Companies, Inc. All rights reserved.
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Slideshow: Non-Surgical Cosmetic Procedures for the Face
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