Fig. 1From: Challenges and successes in the implementation of option B+ to prevent mother-to-child transmission of HIV in southern SwazilandKaplan-Meier graph of time to ART initiation stratified by CD4 group and implementation phases. *Early and late refers to the early (01/2013 to 06/2013) and late (01/2014 to 06/2014) study enrolment periodsBack to article page