Shamim Ahmed, Anthony P. Sileno, Jorge C. deMeireles, Ramneik Dua, Harish K. Pimplaskar, Wei J. Xia, John Marinaro, Edward Langenback, Frank J. Matos, Lakshmi Putcha, Vincent D. Romeo, Charan R. Behl,
Effects of pH and dose on nasal absorption of scopolamine hydrobromide in human subjects. Pharmaceutical Research. ,vol. 17, pp. 974- 977 ,(2000) ,
10.1023/A:1007551927177