1. Developments in nasal drug delivery;Southall;Innovat. Pharm. Technol.,2000
2. The growing market for nasal drug delivery;Koch;Pharmatech,2003
3. Intranasal delivery: Sniffing out new sources for growth;Ruppar;Drug Deliv. Technol.,2006
4. The biopharmaceutical aspects of nasal mucoahdesive drug delivery;Ugwoke;J. Pharm. Pharmacol.,2001