title: WHO requirements for the use of animal cells as in vitro substrates for the production of biologicals (requirements for biological substances No 50).
mesh_terms: D000818:Animals; D001688:Biological Products / Q000592:standards*; D018929:Cell Culture Techniques / Q000592:standards*; D002460:Cell Line; D004274:DNA, Recombinant; D004340:Drug Contamination; D006801:Humans; D012307:Risk Factors; D014015:Tissue Banks / Q000592:standards*; D014780:Viruses / Q000302:isolation & purification; D014944:World Health Organization
chemical_list: D001688:Biological Products; D004274:DNA, Recombinant