GENETIC RESISTANCE TO ROUS SARCOMA VIRUS IN EMBRYO  CELL CULTURES AND EMBRYOS.
D000818:Animals; D001358:Avian Sarcoma Viruses; D002642:Chick Embryo; D015316:Genetic Therapy; D005823:Genetics; D012106:Research; D052736:Rous sarcoma virus; D014776:Virus Cultivation
CHICK EMBRYO; EXPERIMENTAL LAB STUDY; GENETICS; ROUS SARCOMA VIRUS; VIRUS CULTIVATION