About the Authors
Jhpiego/Tanzania, Dar es Salaam, Tanzania
Jhpiego, Baltimore, Maryland, United States of America
Ministry of Health, Iringa Region, Tanzania
Office of HIV and AIDS, United States Agency for International Development, Washington, District of Columbia, United States of America
Ministry of Health and Social Welfare, Dar es Salaam, Tanzania
The authors have declared that no competing interests exist.
Conceived and designed the experiments: HM BK KC MP TA AH EN BF. Analyzed the data: HM BK MP MM MLD BF. Wrote the first draft of the manuscript: HM. Contributed to the writing of the manuscript: HM BK KC MP TA AH SK SN MM MLD DC EN BF. ICMJE criteria for authorship read and met: HM BK KC MP TA AH SK SN MM MLD DC EN BF. Agree with manuscript results and conclusions: HM BK KC MP TA AH SK SN MM MLD DC EN BF.