Onoh, R., Umeora, O., Agwu, U., Ezegwui, H., Ezeonu, P. and Onyebuchi, A. (2013) “Pattern and Determinants of Antenatal Booking at Abakaliki Southeast Nigeria”, Annals of Medical and Health Sciences Research, 2(2), pp. 169–175. doi: 10.4103/2141-9248.105666.