437
The present study used PCR and restriction - enzyme digestion to analyze the frequency of the 845 G - - > A and 187 C - - > G mutations in HLA - typed samples from non - Caucasian populations , comprising Australian Aboriginal , Chinese , and Pacific Islanders .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
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