Hair transplantation using human scalp punch autografts has been a successful method of treating alopecia of the scalp. Observations of several thousand transplants over the past 15 years have confirmed that the methods used have few hazards and have resulted in long-term hair growth in the grafted area.
Orentreich N. Hair Transplants: Long-term Results and New Advances. Arch Otolaryngol. 1970;92(6):576–582. doi:10.1001/archotol.1970.04310060048010
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