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To address the molecular basis of disease in Zellweger syndrome patients from CG1 , we examined all 24 PEX1 exons in four patients , including both patients that have mutations in PMP70 .
 Zellweger syndrome
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 Zellweger syndrome