title: Trends in levels of N-nitrosopyrrolidine in fried bacon.
mesh_terms: D000818:Animals; D004219:District of Columbia; D008460:Meat / Q000032:analysis*; D009603:Nitroso Compounds / Q000032:analysis*; D011759:Pyrrolidines / Q000032:analysis*; D013552:Swine; D013997:Time Factors
chemical_list: D009603:Nitroso Compounds; D011759:Pyrrolidines