title: Biologic and immunologic comparison of two plaque variants of herpes simplex virus type 1.
mesh_terms: D000818:Animals; D002277:Carcinoma; D002460:Cell Line; D002642:Chick Embryo; D003588:Cytopathogenic Effect, Viral; D004352:Drug Resistance, Microbial; D005321:Extraembryonic Membranes; D014644:Genetic Variation; D005827:Genetics, Microbial; D006493:Heparin / Q000494:pharmacology; D006801:Humans; D007822:Laryngeal Neoplasms; D009500:Neutralization Tests; D018139:Simplexvirus / Q000187:drug effects / Q000276:immunology / Q000302:isolation & purification; D013696:Temperature; D014776:Virus Cultivation
chemical_list: D006493:Heparin