[1] Karolinska Inst, Dept Med, Clin Epidemiol Unit, Karolinska Univ Hosp, S-17176 Stockholm, Sweden
[2] Merck Sharp & Dohme Sweden AB, Sollentuna, Sweden
[3] Karolinska Inst, Ctr Family & Community Med, Dept Neurobiol Care Sci & Soc, Huddinge, Sweden
[4] Karolinska Inst, Inst Environm Med, Div Cardiovasc Epidemiol, S-17176 Stockholm, Sweden
[5] Lund Univ, Univ Hosp, Dept Clin Sci, Malmo, Sweden