21945
In vitro , ex vivo and in vivo examination of buccal absorption of metoprolol with varying pH in TR146 cell culture , porcine buccal mucosa and G o ttingen minipigs .
 Chemical: metoprolol
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: metoprolol