Chang Sek Cha

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Asynchronous bilateral torsion of the spermatic cord in the newborn is extremely rare. We report such a case in a 4-day-old boy with subsequent operative discovery of prior in utero torsion of the contralateral spermatic cord. The diagnosis was made by physical examination, transillumination test, color Doppler ultrasound, and confirmed by emergent surgical(More)
  • C M Li, C S Cha
  • Frontiers in bioscience : a journal and virtual…
  • 2004
An enzyme glucose microsensor using a glucose oxidase-immobilized porous carbon/Teflon composite microelectrode was developed. The microsensor was fabricated by etching a platinum microelectrode (platinum, radius of 25 and 50 micrometers) in hot aqua regia to create a cavity at the tip and then packing a porous carbon/Teflon composite, which was made from(More)
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