| 单词 | occult bleeding | 
| 释义 | > as lemmasoccult bleeding   occult bleeding  n.				 [after German Okkulte(magen)blutung (I. Boas 1901, in  Deutsch. Med. Wochenschr. 16 May 315/2)  <  okkult   occult + Magen   stomach (see maw n.1) + Blutung bleeding]			 Medicine haemorrhage, esp. in the gastrointestinal tract, that results in occult blood. ΚΠ 1904    Progressive Med. 4 24  				Occult bleeding in the cases of ulcer was most frequently observed when the patient had recently complained of pain in the stomach. 1973    Lancet 4 Aug. 262/1  				Occult bleeding in the alimentary tract. 1998    Dis. Colon & Rectum 41 1187  				Gastrointestinal neurofibromas may cause occult bleeding, luminal obstruction, or intussusception. < as lemmas | 
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