WordNet

a protective covering (as for a knife or sword)
an enveloping structure or covering enclosing an animal or plant organ or part (同)case
protective covering consisting, for example, of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior (同)overlay, overlayer
a projection at the end of a piece of wood that is shaped to fit into a mortise and form a mortise joint
enclosed in a protective covering; sometimes used in combination; "his sheathed sword"; "the cats sheathed claws"; "a ships bottom sheathed in copper"; "copper-sheathed"

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1. 硬膜内神経鞘腫 intradural nerve sheath tumors
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4. 気管の放射線学 radiology of the trachea
5. 良性（WHOのグレードI）髄膜腫の治療 treatment of benign who grade i meningioma

A new robot for flexible ureteroscopy: development and early clinical results (IDEAL stage 1-2b).

Saglam R1, Muslumanoglu AY2, Tokatlı Z1, Caşkurlu T3, Sarica K4, Taşçi Aİ5, Erkurt B6, Süer E7, Kabakci AS8, Preminger G9, Traxer O10, Rassweiler JJ11.
European urology.Eur Urol.2014 Dec;66(6):1092-100. doi: 10.1016/j.eururo.2014.06.047. Epub 2014 Jul 21.
BACKGROUND: An improved armamentarium has had a significant impact on the emerging role of flexible ureteroscopy (FURS) for the management of nephrolithiasis; however, FURS still represents a challenging technique.OBJECTIVE: To examine a robotic device designed for FURS for its impact on ergonomics
PMID 25059998

Biotherapies in multiple sclerosis: a step toward remyelination and neuroprotection?

Dubessy AL1, Zujovic V1, Papeix C2, Stankoff B3.
Revue neurologique.Rev Neurol (Paris).2014 Dec;170(12):770-8. doi: 10.1016/j.neurol.2014.10.004. Epub 2014 Nov 6.
Multiple sclerosis (MS) is a complex disease of the central nervous system (CNS), characterized by CNS-restricted inflammation with subsequent demyelination and neurodegeneration. Current disease-modifying therapies efficiently reduce relapse rate and new lesions appearance, but still fail to impact
PMID 25459127

Al-Qahtani SM1, Letendre J, Thomas A, Natalin R, Saussez T, Traxer O.
Journal of endourology / Endourological Society.J Endourol.2014 Mar;28(3):286-90. doi: 10.1089/end.2013.0375. Epub 2013 Dec 27.
PURPOSE: Our aim is to evaluate different ureteral access sheaths (UASs), which are available in the international market and their compatibility with different available flexible ureteroscopes (F-URSs) to help the urologist choose the proper ureteral access sheath for his or her endoscope before co
PMID 24147776