2452
Matrix metalloproteinase - 2 staining was observed exclusively in fibroblasts , reaching maximum levels 8 - 12 weeks after surgery , decreasing by 1 . 5 years but remaining significantly increased .
 Anatomy: fibroblasts
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: fibroblasts 
Answer:
 Anatomy: fibroblasts