title: Effects of ammonium nitrate, sodium nitrate, and urea on red-legged frogs, Pacific treefrogs, and African clawed frogs.
authors.affiliation: United States Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Western Ecology Division, 200 SW 35th Street, Corvallis, OR 97333, USA.
authors.forename: G S
authors.initials: GS
authors.lastname: Schuytema
authors.forename: A V
authors.initials: AV
authors.lastname: Nebeker
mesh_terms: D000818:Animals; D001001:Anura / Q000502:physiology*; D001835:Body Weight / Q000187:drug effects; D002273:Carcinogens / Q000633:toxicity*; D007814:Larva / Q000187:drug effects / Q000254:growth & development; D007928:Lethal Dose 50; D009566:Nitrates / Q000633:toxicity*; D019055:No-Observed-Adverse-Effect Level; D011898:Ranidae / Q000502:physiology; D012987:Soil / Q000032:analysis; D014508:Urea / Q000633:toxicity*; D014982:Xenopus laevis / Q000502:physiology
chemical_list: D002273:Carcinogens; D009566:Nitrates; D012987:Soil; C031618:sodium nitrate; D014508:Urea; C006568:ammonium nitrate