Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="Tonchev, Pencho" or (type exact bookEditor and editor="Tonchev, Pencho") Add to list Journal Article A1 open access Efficiency of antenatal care and childbirth services in selected primary health care facilities in rural Tanzania : a cross-sectional study Happiness P Saronga, Els Duysburgh (UGent) , Siriel Massawe, Maxwell A Dalaba, Germain Savadogo, Pencho Tonchev, Hengjin Dong, Rainer Sauerborn and Svetla Loukanova (2014) BMC HEALTH SERVICES RESEARCH. 14.