1. Anaesthetic exposure in the work place;Cohen,1980
2. Über die Mengen des Narkoseáthers in der Luft von Operationssálen;Hirsch;Z Hyg Infektionskr,1929
3. Working in operating rooms, an unhealthy existance;Rejger;Acta Anaesthesiol Belg,1975
4. Distribution of anaesthetic gases in an operating room;Spierdijk,1975
5. Long term exposure of anaesthetic personnel;Armstrong;Bailliáres Clin Anaesthesiol,1993