E. Thom, J. Wadstein, E. W. Thom, and D. H. Kingsley. 2014. “Treatment of Hair Thinning and Hair Ageing With Specific Lectican and Leucine Proteoglycans. A Review”. Journal of Applied Cosmetology 32 (3/4). Italia:106/115. https://scientificeditorial.com/index.php/JAC/article/view/Treatment-of-Hair-Thinning-and-Hair-Ageing-with-Specific-Lectica.