@inbook {49665, title = {Multiple mechanisms of immune evasion by African trypanosomes}, booktitle = {The Trypanosome Surface }, year = {1999}, pages = {71-91}, publisher = {De Boeck \& Larcier s.a.}, organization = {De Boeck \& Larcier s.a.}, address = {Brussels}, author = {Donelson, J.E. and Hill, K.L. and El-Sayed, N.M.A.} }