2680
The secretory transport was distinct in MDCKII / P - gp , MDCKII / MRP2 and MDCKII / BCRP cells , and the affinity was highest for MRP2 , followed by BCRP and P - gp .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None