1. Polyvinyl alcohol‐fixative as a preservative and adhesive for protozoa in dysenteric stools and other liquid material;Brooke MM;J Lab Clin Med,1949
2. Utility of Multiple-Stool-Specimen Ova and Parasite Examinations in a High-Prevalence Setting
3. FederalRegister.1991.Occupational exposure to bloodborne pathogens. Fed Regist 29CFR1910.1030.
4. Diagnostic Medical Parasitology