July 2005 in “Hair transplant forum international”
July 2023 in “RCMOS - Revista Científica Multidisciplinar O Saber” Scalp therapy in barbershops boosts service quality and business opportunities in men's grooming.
January 1981 in “Springer eBooks” May 2016 in “Hair transplant forum international” January 2023 in “Springer eBooks”