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- https://www.dead.net/features/ken-kesey/new-kesey-%E2%80%9Cbio%E2%80%9D-chief-deserves-better
- https://www.dead.net/features/out-now-original-score-magic-trip
- https://www.dead.net/archives/1965/artwork/acid-test-poster-1965-signed-ken-kesey
- https://www.dead.net/archives/1967/clippings/article-about-pigpen-shirts-kesey
