19997
Activation of Both Protein Kinase A ( PKA ) Type I and PKA Type II Isozymes Is Required for Retinoid - Induced Maturation of Acute Promyelocytic Leukemia Cells .
 Chemical: Retinoid
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Retinoid