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external callus
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the collar of callus formed by the periosteum in a long bone.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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external pacemaker
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an artificial cardiac pacemaker located outside the body with output wires connected to circular chest electrodes, with a wire sewn directly into the heart, or with an electrode inserted through an intravenous catheter.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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external pachymeningitis
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inflammation of the outer layers of the dura.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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external absorption
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the absorption of foods, poisons, or other agents through the skin or mucous membrane.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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extraosseous osteosarcoma
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a rare neoplasm occurring in the soft tissues of the body, generally in the thighs, composed of sarcomatous tissue that produces malignant osteoid and bone; it is histologically identical to osteosarcoma occurring in bone.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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