1. Global Initiative for Chronic Obstructive Lung Disease (GOLD).Global Strategy for the Diagnosis Management and Prevention of Chronic Obstructive Pulmonary Disease 2015. Available athttp://www.goldcopd.it/materiale/2015/GOLD_Report_2015.pdf
2. Global Initiative for Asthma (GINA).Global strategy for asthma management and prevention 2016.http://ginasthma.org/2016-gina-report-global-strategy-for-asthma-management-and-prevention/
3. The inhalation device influences lung deposition and bronchodilating effect of terbutaline.
4. Variability in lung deposition of inhaled drug, within and between asthmatic patients, with a pMDI and a dry powder inhaler, Turbuhaler®
5. Population pharmacokinetic analysis of tiotropium in healthy volunteers after intravenous administration and inhalation;Parra‐Guillen Z;J Pharmacokinet Pharmacodyn,2014