Blumenkrantz N, Ullman S, Asboe-Hansen G. Parallel studies on collagen hydroxyproline and hydroxylysine in human skin biopsies. Acta Derm Venereol [Internet]. 1975 Mar. 1 [cited 2024 Aug. 24];56(2):93-8. Available from: https://medicaljournalssweden.se/actadv/article/view/17457