title: Weekend worriers.
authors.forename: Donald A
authors.initials: DA
authors.lastname: Redelmeier
authors.forename: Chaim M
authors.initials: CM
authors.lastname: Bell
mesh_terms: D015906:Angioplasty, Balloon, Coronary / Q000706:statistics & numerical data*; D006801:Humans; D009203:Myocardial Infarction / Q000628:therapy*; D010043:Outcome and Process Assessment, Health Care; D010343:Patient Admission; D005791:Patient Care / Q000592:standards; D010561:Personnel Staffing and Scheduling; D011787:Quality of Health Care; D013997:Time Factors