TY - RPRT TI - [ACTH-effect and heparin in thymus involution test]. AU - W CREUTZFELDT AU - R HOFFMANN AU - L WEISSBECKER PY - 1954 DO - 10.1007/bf01467188 UR - https://pubmed.ncbi.nlm.nih.gov/13234264/ ID - 13234264 ER -