Text and Data Mining valid from 2020-01-23
Received: 3 June 2019
Accepted: 11 January 2020
First Online: 23 January 2020
Ethics approval and consent to participate
: Ethical clearances were obtained from the Federal (NHREC/01/01/2007-20/05/2018) and State Ministries of Health in the respective States (MOH/ADM/744/467). All participating households provided written informed consent.
: All participants consented for publication.
: The authors here declare that they have no competing interests. The views herein are those of the authors not their corresponding institutions of affiliation.