1. Clinical Parasitology;Beaver,1984
2. Classification of the parasitic protozoa;Cox,2005
3. Ribosomal RNA sequence shows Pneumocystis carinii to be a member of the fungi;Edman;Nature,1988
4. Cryptosporidium and cryptosporidiosis;Fayer,1997
5. Diagnostic Medical Parasitology;Garcia,2007