4132
Twenty - eight were excluded as gallstones were not proved : of the remainder , 21 patients received glucagon and 22 placebo .
 GENE: glucagon
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: glucagon 
Answer:
 GENE: glucagon