| Bjerrum's screen |
[Jannik P. Bjerrum, Danish ophthalmologist, 1827?1892] A 1-m square planar surface viewed from a distance of 1 m and consisting of a large square of black cloth with a central mark for fixation. It is used to plot the physiolog
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| Bjork-Shiley heart valve |
A synthetic artificial heart valve that is no longer commercially available but remains implanted in thousands of patients. The valve has been known to fracture at its struts during use, which results in death in the maj
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| Björk-Shiley v. |
a tilting-disk valve consisting of a cobalt alloy cage, a Teflon fabric–covered sewing ring, and a disk made of pyrolytic carbon that opens to an angle of 60 degrees.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Björnstad's s. |
an autosomal recessive disorder characterized by congenital sensorineural deafness and pili torti.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Björnstad's syndrome |
see under syndrome.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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