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In this study, c-myc protooncogene mRNA expression in 29 labial minor salivary gland biopsies from patients with primary SS and 15 controls was examined using in situ hybridization histochemistry .
 RNA: c-myc protooncogene mRNA; DNA: c-myc protooncogene
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 RNA: c-myc protooncogene mRNA; DNA: c-myc protooncogene