Alagusundaram M; Deepthi N; Ramkanth S; Angalaparameswari S; Mohamed Saleem T S; Gnanaprakash K; Thiruvengadarajan V S; Madhusudhana Chetty C. Dry Powder Inhalers - An Overview. Int. J. Res. Pharm. Sci. 2010, 1, 34-42.