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Pedicle screw assembly having a retractable screw tip for facilitating the securement of the pedicle screw assembly to a spinal vertebra |
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Methods for synthesizing glycinols, glyceollins I and II and isoflavenes and chromanes using a Wittig reaction, and compositions made therewith |
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System for selectively filling pin holes, weak shunts and/or scribe lines in photovoltaic devices and photovoltaic cells made thereby |
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Method for producing direct in vitro flowering and viable seed from cotyledon, radicle, and leaf explants, and plants produced therefrom |
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Pedicle screw assembly having a retractable screw tip for facilitating the securement of the pedicle screw assembly to a spinal vertebra |
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Unidirectional rotatory pedicle screw and spinal deformity correction device for correction of spinal deformity in growing children |
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8 Point Program Agreed Upon by President Roosevelt and Prime Minister Winston Churchill Contrasted with Plans for the Nazi New Order |
