Differential preference for pertussis and poliomyelitis vaccines in urban versus rural parents in Guatemala.
University Francisco Marroquin School of Medicine, Guatemala City, Guatemala;
Juan P
JP
DelaFuente
University Francisco Marroquin School of Medicine, Guatemala City, Guatemala;
Erick J
EJ
Castillo-Mazariegos
Department of Pediatrics, University of Colorado School of Medicine;; Center for Global Health and Department of Epidemiology, Colorado School of Public Health, Aurora, Colorado, USA.
Edwin J
EJ
Asturias