Paper spacers coupled to metered dose inhalers in family practice

Samaranayake, S.W.Perera, B.J.C.2016-01-142016-01-141998The Ceylon Medical Journal, 43(03)pp.147-150https://dl.nsf.gov.lk/handle/1/20696Medical SciencesInhaled therapyDrug deliveryCost effectivenessAsthmaPaper spacers coupled to metered dose inhalers in family practiceArticle