Cite journal Last name Oesser First name S. Last name 2 Adam, M. Last name 3 Babel, W. Last name 4 Seifert, J. Year of publication 1999 Title Oral administration of 14C labelled gelatine hydrolysate leads to an accumulation of radioactivity in cartilage of mice (C57/BL) Journal Journal of Nutrition Volume 129 Issue 10 Pages 1891–1895 PMID 10498764 ↑ Iwai, K.; Hasegawa, T.; Taguchi, Y.; Morimatsu, F.; Sato, K.; Nakamura, Y.; Higashi, A.; Kido, Y.; Nakabo, Y.; Ohtsuki, K. (2005). "Identification of food-derived collagen peptides in human blood after oral ingestion of gelatine hydrolysates". Journal of Agricultural and Food Chemistry.