title: Sinus bradycardia following ritodrine withdrawal.
mesh_terms: D000328:Adult; D001146:Arrhythmia, Sinus / Q000209:etiology*; D001919:Bradycardia / Q000209:etiology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011412:Propanolamines / Q000009:adverse effects*; D012312:Ritodrine / Q000009:adverse effects*; D013375:Substance Withdrawal Syndrome / Q000209:etiology*
chemical_list: D011412:Propanolamines; D012312:Ritodrine