TY - JOUR AU - Spielberg, C; Falkenhahn, D; Willich, S N TI - Circadian, day-of-week, and seasonal variability in myocardial infarction: comparison between working and retired patients JO - Am Heart J VL - 132 PY - 1996 DO - 10.1016/S0002-8703(96)90241-0 SP - 579 EP - 585 N1 - et al. ER -