Zhou, Esther H The US Food and Drug Administration's drug safety recommendations and long-acting beta2-agonist dispensing pattern changes in adult asthma patients: 2003-2012. [electronic resource] - Journal of asthma and allergy 2017 - 67-74 p. digital Publication Type: Journal Article ISSN: 1178-6965 Standard No.: 10.2147/JAA.S124395 doi