1. 1. Lynnes G, David B: Diagnostic Medical Parasitology. 3rd edn, 1997; pp 308-314, 568, ASM press, Washington.
2. 2. Markell EK, Voge M, John DT: Medical Parasitology. 7th edn, 1992; pp 226-230, WB Saunders, Philadelphia.
3. 3. Yoshida Y, Arizono N: Illustrated Human Parasitology. 7th edn, 2006; pp 188-191, Nanzando, Tokyo (In Japanese).
4. 4. Ohnishi K, Murata M: Treatment with praziquantel for human Diphyllobothrium nihonkaiense infections. Jpn J Parasitol 1993; 43 (suppl.): 106 (In Japanese).