Funding for this research was provided by:
Mr & Mrs Philip Nnamonu (Not Applicable)
Received: 26 July 2019
Accepted: 27 March 2020
First Online: 9 April 2020
Ethics approval and consent to participate
: The ethical conditions and experimental protocol governing the use and conduct of experiments with live animals were strictly observed as approved by the University of Nigeria, Nsukka, Senate Committee on Medical and Research Ethics.
: Not applicable
: The authors declare that they have no competing interests.