title: Potential variations in levothyroxine formulated in the United States versus in Canada.
authors.forename: Sheldon S
authors.initials: SS
authors.lastname: Stoffer
authors.forename: Walter E
authors.initials: WE
authors.lastname: Szpunar
mesh_terms: D002170:Canada; D002626:Chemistry, Pharmaceutical; D013810:Therapeutic Equivalency; D013974:Thyroxine / Q000737:chemistry* / Q000493:pharmacokinetics*; D014481:United States
chemical_list: D013974:Thyroxine