SPONTANEOUS TUMORS IN GERM-FREE RATS.
D000818:Animals; D001943:Breast Neoplasms; D005856:Germ-Free Life; D006801:Humans; D015674:Mammary Neoplasms, Animal; D008325:Mammary Neoplasms, Experimental; D009369:Neoplasms; D051381:Rats; D012106:Research
EXPERIMENTAL LAB STUDY; GERM-FREE LIFE; MAMMARY NEOPLASMS, EXPERIMENTAL; RATS