[On the problem of endogenous tumor resistance].
D000818:Animals; D006493:Heparin / Q000494:pharmacology; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000276:immunology*; D051381:Rats; D012517:Sarcoma, Yoshida / Q000276:immunology*
D006493:Heparin
Zur Frage der körpereigenen Tumorabwehr.