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Laparoscopic pancreatoduodenectomy (LPD) remains one of the most challenging minimal invasive operations today.Between January 2007 and December 2016, 197 patients were scheduled for LPD but 162 patients (from January 2007 to July 2016) were analysed in this cohort series. Results: Total LPD concerned for 162 patients (five patients did not undergo PD and 12 underwent conversion): standard LPD in...
A multi-wavelength, passively Q-switched Er-doped fiber ring laser is built. With a piece of 37cm long Tm-Ho codoped fiber which works as both a wavelength filter and a fiber saturable absorber, multi-wavelength lasing in the frequency domain and passive Q-switching in the time domain of the laser system are realized simultaneously. A broad multi-wavelength lasing from 1545nm to 1560nm is obtained...
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