title: WITHDRAWN: Comparative study of the karyotypes and electrophoretic patterns of Biomphalaria alexandrina and Bulinus truncatus and the ova of their corresponding trematode hosts.
abstract: The Publisher regrets that this article is an accidental duplication of an article that has already been published, doi:10.1016/j.parint.2011.05.006. The duplicate article has therefore been withdrawn.
authors.affiliation: Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt.
authors.forename: Fayez A
authors.initials: FA
authors.lastname: Bakry
authors.forename: Manal F
authors.initials: MF
authors.lastname: El Garhy