Medical aspects of airline operations. I: Health and hygiene.
D000337:Aerospace Medicine / Q000592:standards; D003140:Communicable Disease Control / Q000379:methods; D005511:Food Handling / Q000592:standards; D006801:Humans; D006920:Hygiene; D010571:Pest Control; D012499:Sanitation / Q000592:standards; D014195:Travel