title: Excretion in reptiles; nitrogen constituents of the urinary concretions of the viviparous snake Eryx thebaicus, Reuss.
mesh_terms: D000818:Animals; D002137:Calculi; D007668:Kidney / Q000502:physiology*; D009584:Nitrogen; D012104:Reptiles; D012911:Snakes; D014551:Urinary Tract
chemical_list: D009584:Nitrogen
keywords: KIDNEYS/physiology; SNAKES; URINARY TRACT/calculi