Funding
This work was supported by the Lesotho Boston Health Alliance
(LeBoHA) and the Kellogg Foundation (P3004560 and
P3005663).
Authorship
TV participated in the conceptualization, research design,
implementation and writing of this manuscript and approved
the final version. WB participated in conceptualization, research
design and implementation, and approved the original submission.
WB died in 2012 and the manuscript is being published
posthumously.