You're the flight surgeon. Ulcerative colitis.
D000328:Adult; D000337:Aerospace Medicine / Q000379:methods*; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage / Q000627:therapeutic use; D003085:Colic / Q000209:etiology / Q000382:microbiology; D003093:Colitis, Ulcerative / Q000150:complications / Q000175:diagnosis* / Q000628:therapy*; D003937:Diagnosis, Differential; D003967:Diarrhea / Q000209:etiology / Q000382:microbiology; D004926:Escherichia coli / Q000302:isolation & purification; D006801:Humans; D008297:Male; D019804:Mesalamine / Q000008:administration & dosage / Q000627:therapeutic use; D008877:Middle East; D008889:Military Personnel; D012760:Shigella / Q000302:isolation & purification; D014195:Travel
D000894:Anti-Inflammatory Agents, Non-Steroidal; D019804:Mesalamine