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Poultry Science|May 1, 1975
Effect of selected environmental treatments on the incidence of gross Marek's disease lesions in chickensR F Lapen, S G KenzyApplied and Environmental Microbiology|July 1, 1978
Effects of dispersed recreational activities on the microbiological quality of forest surface waterK J Varness, R E Pacha, R F LapenJournal of the National Cancer Institute|November 1, 1970
Cutaneous changes associated with Marek's disease of chickensR F Lapen, R C Piper, S G KenzyPageof 1