Agrup, G, T Andersson, B Falck, K Persson, H Rorsman, AM Rosengren, and E. Rosengren. “5-S-Cysteinyldopa in the Plasma of Melanoma Patients and the Renal Clearance of This Amino Acid”. Acta Dermato-Venereologica 55, no. 1 (January 1, 1975): 5–6. Accessed May 30, 2026. https://medicaljournalssweden.se/actadv/article/view/17547.