例句 /

Gastrointestinal bleeding was also frequent (28.55%).Small bowel (64%) and colon (39%) were the major sites involved.

Gastrointestinal bleeding was also frequent (28.55%).Small bowel (64%) and colon (39%) were the major sites involved.

结肠镜是末端回肠和结肠病变的主要诊断手段。