Health (5) santé (3) Employees (3) Nursing (3) Health (3) sommeil (2) hôpital (2) public (2) Nursing (2) Housekeeping (2) Labor (2) Work (2) Women (2) Time (2) Sleep (2) Shift systems (2) Professional employees (2) Perspective (2) Night (2) Life (2) Computer output microfilm devices (2) Body mass index (2) Ordenadores--Salida en microfilme (2) Salud (2) Perspectiva (2) Trabajo (2) nécessité (2) temps (durée) (1) état (1) tabagisme (1)