3Pietilfi JP, NordstrOm RE, Numminen MK, et al. Validity of laser Dop- pler flowmetry for measuring the effect of the tissue expander pressure on skin circulation. Simultaneous measurement of tissue pressure and laser Doppler flowmetry. Scand] Plast Reconstr Surg Hand Surg, 1988, 22(2): 135-139.
4Logan SE, Hayden I. A control unit for maximal-rate continuous tissue exoansion (CTE). Biomed Sci lnstrum, 1989, 25: 27-33.