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He was influential in the underground comix scene , first printing Zap Comix artists such as Robert Crumb and S. Clay Wilson , whom he first published in Lawrence , Kansas .
 Robert Crumb, S. Clay Wilson, Lawrence , Kansas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Robert Crumb, S. Clay Wilson, Lawrence , Kansas