Onoh, RC, OUJ Umeora, UM Agwu, HU Ezegwui, PO Ezeonu, and AK Onyebuchi. 2013. “Pattern and Determinants of Antenatal Booking at Abakaliki Southeast Nigeria”. Annals of Medical and Health Sciences Research 2 (2):169-75. https://doi.org/10.4103/2141-9248.105666.