Journal Article
                        
                        Habib, Ndema, Anne  Daltveit, Joseph  Mlay, Olola  Oneko, John  Shao, Per  Bergso, Erik  Lie-Nielsen, and Rolv  Lie.  
"Birthweight and perinatal mortality among singletons and twins in north-eastern Tanzania." Scandinavian journal of public health 36, no. 7 (2008): 761-768.