Incidence of childhood cancers in the North East geopolitical zone of Nigeria oleh Dauda Eneyamire Suleiman, Adamu Saidu Adamu, Uchenna Simon Ezenkwa, Maimuna Orahachi Yusuf, Aliyu Ibrahim Lawan, Rufai Abdu Dachi, Kefas John Bwala, Haruna Usman Liman, Abba Kabir, Adamu Isa Adamu, Modu Abubakar Kolomi, Abdulrazaq Ajanaku Jimoh, Ismaila Isa Garba, Yusuf Mohammed Abdullahi, Bala Mohammed Audu