Muohi A W, Onyari J M, Omondi J G, Mavuti K M
Department of Zoology, College of Biological and Physical Sciences, University of Nairobi, Post Office Box 30197, Nairobi, Kenya.
Bull Environ Contam Toxicol. 2003 Jun;70(6):1220-7. doi: 10.1007/s00128-003-0112-3.