Vaccine
Volume 37, Issue 37 Pages 5505-5664 (3 September 2019)
https://www.sciencedirect.com/journal/vaccine/vol/37/issue/37

Review article Abstract only
Defining hard-to-reach populations for vaccination
Sachiko Ozawa, Tatenda T. Yemeke, Daniel R. Evans, Sarah E. Pallas, … Bruce Y Lee
Pages 5525-5534