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BMC Public Health > 2019 > 19 > 1 > 1-6
BMC Health Services Research > 2019 > 19 > 1 > 1-9
Digestive Diseases and Sciences > 2019 > 64 > 12 > 3394-3401
BMC Women's Health > 2019 > 19 > 1 > 1-11
BMC Health Services Research > 2019 > 19 > 1 > 1-7
BMC Public Health > 2019 > 19 > 1 > 1-4
Applied Microbiology and Biotechnology > 2019 > 103 > 21-22 > 8875-8888
BMC Infectious Diseases > 2019 > 19 > 1 > 1-7
BMC Public Health > 2019 > 19 > 1 > 1-9
BMC Public Health > 2019 > 19 > 1 > 1-14
Infectious Agents and Cancer > 2019 > 14 > 1 > 1-8
BMC Research Notes > 2019 > 12 > 1 > 1-6
BMC Public Health > 2019 > 19 > 1 > 1-11
International Journal for Equity in Health > 2019 > 18 > 1 > 1-9
BMC Public Health > 2019 > 19 > 1 > 1-16
Global Health Research and Policy > 2019 > 4 > 1 > 1-8
Harm Reduction Journal > 2019 > 16 > 1 > 1-9
BMC Infectious Diseases > 2019 > 19 > 1 > 1-10
BMC Immunology > 2019 > 20 > 1 > 1-11