11825
An association was demonstrated between the expression of aberrantly and / or alternatively spliced mdm2 mRNAs and a lack of progesterone receptor .
 mdm2 mRNAs, progesterone receptor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 mdm2 mRNAs, progesterone receptor