title: Trypanosoma brucei: loss of variable antigens during transformation from bloodstream to procyclic forms in vitro.
mesh_terms: D000371:Agglutination; D000818:Animals; D000954:Antigens, Surface / Q000032:analysis; D001769:Blood / Q000469:parasitology; D005455:Fluorescent Antibody Technique; D013997:Time Factors; D014346:Trypanosoma brucei brucei / Q000166:cytology / Q000276:immunology*
chemical_list: D000954:Antigens, Surface