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The role of the p53 pathway in Runx2 / MYC tumors was explored on a p53 heterozygote background .
 Runx2 / MYC tumors, p53 heterozygote
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Runx2 / MYC tumors, p53 heterozygote