TY - GEN AU - Jones,D J TI - ABC of colorectal diseases. Lower gastrointestinal haemorrhage SN - 0959-8138 PY - 1992///0903 KW - Colitis KW - complications KW - Colonic Diseases KW - etiology KW - Gastrointestinal Hemorrhage KW - Humans KW - Rectal Diseases N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1136/bmj.305.6845.107 ER -