title: Unstable angina precipitated by nifedipine.
mesh_terms: D000787:Angina Pectoris / Q000139:chemically induced*; D000789:Angina, Unstable / Q000139:chemically induced*; D006801:Humans; D009543:Nifedipine / Q000009:adverse effects*
chemical_list: D009543:Nifedipine