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In page The ABC of Sex Education for Trainables:

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The onscreen credits acknowledge that narration was provided by Richard Dix and that dramatic sequences were provided by William Block, M.D., Beverly Camp, Rick Fullerton, Peter Green, Michael Kowalski, Ellen Moats, George Murray, Aaron Orenstein, Christopher Reidy, Murray Zeligman, and members and staff of the Ronald Bruce Nippon Assoc., and Planned Parenthood of Southeastern Pennsylvania.[1]