Cluster 73: bowels stomach alter retain malabsorption absorption abnormalities swallow resection gastrointestinal 
Cluster 380: significant abnormalities clinically gastrointestinal urinalysis absorption disorders results affect relevant 
Cluster 955: malabsorption stomach bowel absorption resection small syndrome gastrointestinal major affect 
Cluster 1486: gi manifestations reason alter unknown malabsorption gastrointestinal absorption mln stomata