TY - JOUR T1 - Inhaled β<sub>2</sub>-agonists in asthma management: an evolving story JF - Breathe JO - Breathe SP - 375 LP - 377 DO - 10.1183/20734735.017116 VL - 12 IS - 4 AU - Diana Silva AU - Tiago Jacinto Y1 - 2016/12/01 UR - http://breathe.ersjournals.com/content/12/4/375.abstract N2 - Sympathomimetic agents have been known in Chinese medicine for at least 5000 years as a drug to treat disorders of respiratory tract; however, they were introduced to western medicine mainly in the beginning of the 20th century [1].The history and the future of inhaled β2-agonists in asthma management http://ow.ly/s1s4305l4k4 ER -