Lesens et al. (2016), Journal of Travel Medicine
Also online: https://watermark.silverchair.com/taw042.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAlgwggJUBgkqhkiG9w0BBwagggJFMIICQQIBADCCAjoGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMtrqmBQv2SiObwKWvAgEQgIICC5RbNycsfPBixGqU1gbDrntI5M7blgxp0alwUXSdAjP_jnb6ePwbVGQPvvOegWfXfywwTyyWFE77_WafB6F6jN0rveOLLJaGZQWZv7oBe2_P2ilh40JUwKqQGX1ZSrVOSdkMLnoxZyEzUTk0pK-pra9VzBtEjVrfM1ylpiFa1ge320vULXk_bers98QXASiK3HkMglLeGxKpY85f5jo_sjlSkAu9UBXsDkk0QtB1BggSjwjzfBnIi3IHWOjmKNSW7ObwatBQQPy3yKZT7M7zb6SGRSH1enB85NzuCt3BFc395MY_EDbABg15ZWP2L5JR8KJdkJXlX7hhpiafhm-ODil3T7z9k8MiCWQsukeUn82o1o0uM1CBGrk6EE6BV6l9mAMxE9mXBrMb9lubf9QxTF7wdwh0Oqtk4g501nGSxmnNmt2FmviS4iTtXmDtB–cUnUr_kxofGdY6whTZRdo2pQt8dxB-i-aJQHh_O5T-Vt401rm2HXX7N3HsGskDBzGVHXPTG5vMB-2_DLuwSCLrH18TpoPd6SxOgfnyR96hU5GHDOkAnBseWdTWkoMe-WU3L_kg2XuUU5MPk8LkDMFWk-UQYp5mw4PWz9wDqU8U8bh2GMmrNUq_xIfbQK3D4omWeIVrTFlo6weLaE8kbCqfziipTM6Bbx7Qmtg0521uqh7DFn2UKo-ahlYmNU