Howell, D. A., Lehman, G. A., Sherman, S., Baillie, J., Branch, M. S., Chuttani, R., … Bosco, J. J. (2000). 7256 Multicenter randomized comparative trial of the new gianturco spiral z-stent compared to wallstent: study design and preliminary report of the zoom study. Gastrointestinal Endoscopy, 51(4), AB307–AB307. https://doi.org/10.1016/s0016-5107(00)14927-2

Howell, Douglas A., Glen A. Lehman, Stuart Sherman, John Baillie, M. S. Branch, Ram Chuttani, Douglas K. Pleskow, et al. “7256 Multicenter randomized comparative trial of the new gianturco spiral z-stent compared to wallstent: study design and preliminary report of the zoom study.” Gastrointestinal Endoscopy 51, no. 4 (April 2000): AB307–AB307. https://doi.org/10.1016/s0016-5107(00)14927-2.

Howell DA, Lehman GA, Sherman S, Baillie J, Branch MS, Chuttani R, et al. 7256 Multicenter randomized comparative trial of the new gianturco spiral z-stent compared to wallstent: study design and preliminary report of the zoom study. Gastrointestinal Endoscopy. 2000 Apr;51(4):AB307–AB307.

Howell, Douglas A., et al. “7256 Multicenter randomized comparative trial of the new gianturco spiral z-stent compared to wallstent: study design and preliminary report of the zoom study.” Gastrointestinal Endoscopy, vol. 51, no. 4, Elsevier BV, Apr. 2000, pp. AB307–AB307. Crossref, doi:10.1016/s0016-5107(00)14927-2.

Howell DA, Lehman GA, Sherman S, Baillie J, Branch MS, Chuttani R, Pleskow DK, Parsons WG, Slivka A, Akerman PA, Bosco JJ. 7256 Multicenter randomized comparative trial of the new gianturco spiral z-stent compared to wallstent: study design and preliminary report of the zoom study. Gastrointestinal Endoscopy. Elsevier BV; 2000 Apr;51(4):AB307–AB307.