TY - RPRT TI - [Tryptophan-load in progressive scleroderma (author's transl)]. AU - H W Kreysel AU - K Meyerhoff AU - J Kimmig PY - 1976 DO - 10.1007/bf01483590 UR - https://pubmed.ncbi.nlm.nih.gov/135125/ ID - 135125 ER -