Buikema, A. R., Brekke, L., Anderson, A., Koep, E., Van Voorhis, D., Sharpsten, L., . . . Stanford, R. H. (2018). The effect of delaying initiation with umeclidinium/vilanterol in patients with COPD: An observational administrative claims database analysis using marginal structural models. Multidiscip Respir Med.

Buikema, Ami R., Lee Brekke, Amy Anderson, Eleena Koep, Damon Van Voorhis, Lucie Sharpsten, Beth Hahn, Riju Ray, a Richard H. Stanford. "The Effect of Delaying Initiation With Umeclidinium/vilanterol in Patients With COPD: An Observational Administrative Claims Database Analysis Using Marginal Structural Models." Multidiscip Respir Med 2018.

Buikema, Ami R., et al. "The Effect of Delaying Initiation With Umeclidinium/vilanterol in Patients With COPD: An Observational Administrative Claims Database Analysis Using Marginal Structural Models." Multidiscip Respir Med 2018.