Travel Medicine and Infectious Disease, 19, 33. Elsevier USA Travel Medicine and Infectious Disease, 19, 33-36. Elsevier Inc. Travel medicine and infectious disease, 19, 33-36. Elsevier USA Travel Medicine and Infectious Disease, 19, 33-36. ELSEVIER SCI LTD
BMC Public Health, 14. BioMed Central Ltd. BMC public health, 14(1). BioMed Central BMC Public Health, 14. BioMed Central BMC Public Health BMC Public Health, 14:410. BioMed Central Ltd