Induction of subcutaneous tumors in rats by plastic loops and spirals.
D000818:Animals; D003273:Contraceptive Devices; D005350:Fibroma; D005354:Fibrosarcoma; D008670:Metals; D009374:Neoplasms, Experimental; D010969:Plastics / Q000009:adverse effects*; D051381:Rats; D013193:Stainless Steel
D008670:Metals; D010969:Plastics; D013193:Stainless Steel