6611
T47D - ShPRLR cells , in which PRLR expression was reduced by stable short hairpin RNA ( shRNA ) expression , were compared with T47D - SCR control cells .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None