[1] Huang D, Swanson E A, Lin C P, et al. Science, 1991, 254(11): 1178.

[2] Schmitt J M, Knuttel A, Bonner R F. Appl. Opt., 1993, 32(30): 6032.

[3] Schuman E A, Puliafito C A, Fujimoto J G. Opt. Lett., 1993, 18(4): 1864.

[4] Feldchtein F I, G V Gelikonov G V, et al. Opt. Express, 1998, 6: 239.

[5] Swanson E A, Hee M R, et al. Opt. Lett., 1992, 17(2): 151.

[6] Izatt J A, Konkani M D, Wang H W, et al. IEEE Journal of Selected Topics in Quantum Electronics, 1996, 2(4): 1017.

[7] Colston B W, Everett M J, Ad Silva L B, et al. Proceedings of SPIE, 1997, 2973: 216.

[8] Boom B E, Tierney G J, Compton C C, et al. Gastrointestinal Endosc, 2000, 51: 467.

[9] Boom B E, Tierney G J, Yabushita H, et al. Heart, 2003, 89: 317.

[10] Jacobs A H, Walton R G. Pediatrics, 1976, 58: 218.