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1946 1
1975 2
1977 1
2015 1
2023 0

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Visual education.
SPENCER PL. SPENCER PL. Am J Optom Arch Am Acad Optom. 1946 Jan;23:16-31. doi: 10.1097/00006324-194601000-00003. Am J Optom Arch Am Acad Optom. 1946. PMID: 21007790 No abstract available.
Pike County, Illinois, swine brucellosis project.
Spencer PL, Mattison JR. Spencer PL, et al. Proc Annu Meet U S Anim Health Assoc. 1975;(79):86-91. Proc Annu Meet U S Anim Health Assoc. 1975. PMID: 1078069 No abstract available.