title: Immortal time bias.
authors.affiliation: Rigshospitalet, Copnhagen University Hospital, Copenhagen, Denmark.
authors.forename: Niels
authors.initials: N
authors.lastname: Obel
mesh_terms: D044966:Anti-Retroviral Agents / Q000627:therapeutic use*; D000924:Anticholesteremic Agents / Q000627:therapeutic use*; D005260:Female; D015658:HIV Infections / Q000150:complications* / Q000188:drug therapy*; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000453:epidemiology*
chemical_list: D044966:Anti-Retroviral Agents; D000924:Anticholesteremic Agents