Paper I: Mmbaga, B T., Lie, R. T., Kibiki, G. S., Olomi, R., Kvåle, G. & Daltveit, A. K. (2011) Transfer of newborns to neonatal care unit: a registry based study in Northern Tanzania. BMC Pregnancy and Childbirth 11:68, October 2011. The article is available at: http://hdl.handle.net/1956/5505Paper II: Mmbaga, B. T., Lie, R. T., Olomi, R., Mahande, M. J., Kvåle, G. & Daltveit, A. K. (2012) Causespecific neonatal mortality in a neonatal care unit in Northern Tanzania: a registry based cohort study. BMC Pediatrics 12:116, August 2012. The article is available at: http://hdl.handle.net/1956/6568Paper III: Mmbaga, B. T., Lie, R. T., Kibiki, G. S., Olomi, R., Olola, O. & Daltveit, A. K. (2012) Causes of perinatal deaths at a tertiary care hospital in Northern Tanzania 2000-2010: a registry based study. BMC Pregnancy and Childbirth 12:139, December 2012. The article is available at: http://hdl.handle.net/1956/6569