Demelash, Y.; Abebe, N.; Sharew, Y.; Mehare, T. Adherence of Option B+ Prevention of Mother-to-Child Transmission Program and Its Associated Factors Among Pregnant and Lactating Mothers in Public Health Facilities of East Gojjam Zone, Amhara Region, Ethiopia, 2017. Int J Sci Rep 2019, 5, 301-308.