C. Reverdito

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Primary or spontaneous intracranial hypotension (SIH) is a rare syndrome which causes postural headache associated with spinal fluid hypotension. We report three cases of SIH, characterised on magnetic resonance imaging (MRI) by pachymeningeal enhancement not only at cerebral level, but also in the cervical spinal cord, which subsequently resolved(More)
An experimental analysis of InGaAsP injection lasers shows an unexpected decrease of the differential quantum efficiency as a function of injected current when optical power is fed back into the active cavity of a diode inserted into a long transmission line. To investigate the response of laser diodes to optical feedback, we base our analysis on a(More)
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