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80 and over
1
Aged
1
Anemia
1
Anticoagulants/adverse effects
1
Aspirin/adverse effects
1
Colorectal Neoplasms/diagnosis
1
Colorectal Neoplasms/epidemiology*
1
Female
1
Gastrointestinal Hemorrhage/diagnosis
1
Gastrointestinal Hemorrhage/epidemiology
1
Gastrointestinal Hemorrhage/etiology
1
Hemorrhage/diagnosis
1
Hemorrhage/epidemiology*
1
Hemorrhage/etiology
Humans
1
Iceland
1
Iceland/epidemiology
1
Intestinal Obstruction
1
Iron-Deficiency/diagnosis
1
Iron-Deficiency/epidemiology*
1
Járnskortur
1
Male
1
Middle Aged
1
Occult Blood
1
Retrospective Studies
1
Ristilkrabbamein
1
Warfarin/adverse effects
1
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