9Brennan FN, Mccarthy JH, Landoscopic Bh. Endoscopic Nd-YAG laser therapy for palliation of upper gastrointestinal malignancy [J]. Med J Aust 1990,153:27-31.
10Naveau S, Chieas A, Poynard T, et al. Endoscopic Nd-YAG laser therapy as palliative for esophageal and cardial cancer [J]. Dig Dis Sci,1990,35:247-250.