Covelli, H., Pek, B., Schenkenberger, I., Scott-Wilson, C., Emmett, A., & Crim, C. (2015). Efficacy and safety of fluticasone furoate/vilanterol or tiotropium in subjects with COPD at cardiovascular risk. Int J Chron Obstruct Pulmon Dis.

Covelli, Henry, Bonavuth Pek, Isabelle Schenkenberger, Catherine Scott-Wilson, Amanda Emmett, و Courtney Crim. "Efficacy and Safety of Fluticasone Furoate/vilanterol or Tiotropium in Subjects With COPD At Cardiovascular Risk." Int J Chron Obstruct Pulmon Dis 2015.

Covelli, Henry, et al. "Efficacy and Safety of Fluticasone Furoate/vilanterol or Tiotropium in Subjects With COPD At Cardiovascular Risk." Int J Chron Obstruct Pulmon Dis 2015.