TY - JOUR AU - Thygesen, L C; Ersbøll, A K TI - When the entire population is the sample: strengths and limitations in register-based epidemiology JO - Eur J Epidemiol VL - 29 PY - 2014 DO - 10.1007/s10654-013-9873-0 L3 - PubMed-ID: 24407880 SP - 551 EP - 558 ER -