8Bron AJ, Mangat H, Quinlan M, et al. Polyacrylic acid gel in patients with dry eyes: a randomized comparison with polyvinyl alcohol [J]. Eur J OpHthalmol,1998, 8(2):81.
9Bromberg LE. Enhanced nasal retention of hydropHobically modified polyelectrolytes [J]. J PHarm PHarmacol, 2001,53(1):109.
10Guo JH. Bioadhesive polymer buccal patches for buprenorpHine controlled delivery: Formulation, in vitro adhesion and release properties [J]. Drug Dev Ind PHarm, 1994,20(18):2809.