 GI:  He denies any odynophagia, dysphagia, heartburn on a regular basis, abdominal pain, abdominal swelling, diarrhea, blood in his stool, or black tarry stools. 
GI : He denies any odynophagia , dysphagia , heartburn on a regular basis , abdominal pain , abdominal swelling , diarrhea , blood in his stool , or black tarry stools .