Preliminary Phytochemical Screening of Spilanthes uliginosa,
Ocimum basilicum, Hyptis spicigera and Cymbopogon citratus leaf
extracts and Haematological Changes of Mice Infected with Malaria Parasite
A.J. Uraku, Ugwu Okechukwu P.C. and Edwin Nzubechukwu