title: The analysis of failure time data in crossover studies.
authors.forename: D R
authors.initials: DR
authors.lastname: Bristol
mesh_terms: D000787:Angina Pectoris / Q000188:drug therapy*; D001262:Atenolol / Q000627:therapeutic use; D009543:Nifedipine / Q000627:therapeutic use; D016016:Proportional Hazards Models; D012107:Research Design / Q000592:standards*; D013997:Time Factors
chemical_list: D001262:Atenolol; D009543:Nifedipine