Can severe asthmatic patients achieve asthma control? A systematic approach in patients with difficult to control asthma followed in a specialized clinic.
Rodrigo Abensur AthanazioRegina Carvalho-PintoFrederico Leon Arrabal FernandesSamia RachedKlaus RabeAlberto CukierRafael StelmachPublished in: BMC pulmonary medicine (2016)
Retrospectively registered at ClinicalTrial.gov on 22 February 2010 ( NCT01089322 ).