[Comparative study of absenteeism due to illness among Netherlands Railroad employees caused by aspecific respiratory troubles in sandy regions and in marshy lands].
D000041:Absenteeism; D002980:Climate; D006801:Humans; D009426:Netherlands; D009787:Occupational Medicine; D011890:Railroads; D012120:Respiration Disorders; D012140:Respiratory Tract Diseases; D053833:Wetlands
CLIMATE; INDUSTRIAL MEDICINE; RAILROADS; RESPIRATORY DISEASES