22952
The objective of this study was to prepare and evaluate in situ forming gel systems designed by combination of two poloxamers ( P407 and P188 ) and hydroxypropylmethylcellulose ( HPMC ) for prolonged release of heparin .
 Chemical: poloxamers ( P407 and P188 )
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: poloxamers ( P407 and P188 ) 
Answer:
 Chemical: poloxamers ( P407 and P188 )