"Preventive Health Services." . . . . . . . . . . "British medical journal" . . . . . . "ABC of healthy travel" . "ABC of healthy travel"@en . . "Handbooks and manuals" . "Handbooks and manuals"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Hygiene." . . "Travel Hygienic aspects Handbooks, manuals, etc." . . "Travel Health aspects Handbooks, manuals, etc." . . . . "First Aid." . . "Health." . . "Hygiene Handbooks, manuals, etc." . . "Travel Health aspects." . . "Travel Handbooks, manuals, etc." . . "Travel." . . "Immunization Collected Works." . . "Tropical Medicine." . . "Health Handbooks, manuals, etc." . . "Communicable Disease Control." . . "Communicable Disease Control Collected Works." . . "Travel Collected Works." . .