title: On the metabolic activation of N-nitrosomorpholine and N'-nitrosonornicotine: effects of deuterium substitution.
mesh_terms: D000818:Animals; D001711:Biotransformation; D002273:Carcinogens / Q000378:metabolism*; D003903:Deuterium; D006900:Hydroxylation; D066298:In Vitro Techniques; D008297:Male; D008862:Microsomes, Liver / Q000378:metabolism; D009374:Neoplasms, Experimental / Q000139:chemically induced; D009602:Nitrosamines / Q000378:metabolism* / Q000633:toxicity; D051381:Rats; D011916:Rats, Inbred F344; D013329:Structure-Activity Relationship
chemical_list: D002273:Carcinogens; D009602:Nitrosamines; C002741:N-nitrosomorpholine; D003903:Deuterium; C008655:N'-nitrosonornicotine