title: Paradoxical angina after nifedipine: angiographic documentation.
mesh_terms: D000787:Angina Pectoris / Q000139:chemically induced* / Q000000981:diagnostic imaging; D000792:Angiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000009:adverse effects*
chemical_list: D009543:Nifedipine