2889
Fifty - four patients were divided into groups according to their clinical presentation ; seven asymptomatic volunteers , 20 patients with duodenal - gastric reflux gastropathy ( DRG ) , 16 patients with recurrent ulcers of the duodenal bulb ( RUD ) , and 11 patients with Moynihan ' s disease .
 None
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:  
Answer:
 None