title: Factors influencing the leukocyte concentration of the freshwater snail Bulinus africanus.
authors.forename: E
authors.initials: E
authors.lastname: Yssel
authors.forename: C T
authors.initials: CT
authors.lastname: Wolmarans
mesh_terms: D000818:Animals; D001773:Blood Cells; D002033:Bulinus / Q000166:cytology*; D002452:Cell Count; D006434:Hemocytes