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Since the primary purpose of phase I trials is to determine DLT and MTD , the efficacy of the drug may not be evident for certain tumor types as there are only a small number of patients enrolled into the trial .
 Anatomy: tumor
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: tumor