title: A new twist on the chiral switch.
mesh_terms: D000077144:Clopidogrel; D010330:Patents as Topic / Q000331:legislation & jurisprudence*; D013237:Stereoisomerism; D013988:Ticlopidine / Q000031:analogs & derivatives / Q000737:chemistry* / Q000627:therapeutic use
chemical_list: D000077144:Clopidogrel; D013988:Ticlopidine