by Celli, B.R, Halbert, R.J, Isonaka, S, Schau, B
Published in The European respiratory journal (01.08.2003)

by Price, David B., Tinkelman, David G., Nordyke, Robert J., Isonaka, Sharon, Halbert, R.J.
Published in Chest (01.06.2006)

by Nicholson, G.L, Halbert, R.J
Published in Value in health (01.05.2015)

by Price, David B., Tinkelman, David G., Halbert, R.J., Nordyke, Robert J., Isonaka, Sharon, Nonikov, Dmitry, Juniper, Elizabeth F., Freeman, Daryl, Hausen, Thomas, Levy, Mark L., Østrem, Anders, van der Molen, Thys, van Schayck, Constant P.
Published in Respiration (01.01.2006)

by Kothawala, Prajesh, MD, MPH, Badamgarav, Enkhe, MD, MPH, Ryu, Seonyoung, PharmD, Miller, Ross M., MD, MPH, Halbert, R.J., MD, MPH
Published in Mayo Clinic proceedings (01.12.2007)

by Jensen, I.S, Halbert, R.J, Grosvenor, A, Schwartz, E.L, Rossi, D.G, Naoshy, S, Iqbal, S.U, Xiao, Z, McSweeney, P.A
Published in Value in health (01.11.2013)

by Freeman, Daryl, Nordyke, Robert J., Isonaka, Sharon, Nonikov, Dmitry V., Maroni, Jaman M., Price, David, Halbert, R.J.
Published in Respiratory medicine (01.10.2005)

by Tinkelman, David G., Price, David B., Nordyke, Robert J., Halbert, R.J., Isonaka, Sharon, Nonikov, Dmitry, Juniper, Elizabeth F., Freeman, Daryl, Hausen, Thomas, Levy, Mark L., Østrem, Anders, van der Molen, Thys, van Schayck, Constant P.
Published in Respiration (01.01.2006)

by Nicholson, G.L., Halbert, R.J.
Published in Value in health (01.05.2015)

by van Schayck, C.P., Levy, Mark L., Chen, Joyce C., Isonaka, Sharon, Halbert, R.J.
Published in Primary care respiratory journal (01.12.2004)

by HALHERT, R. J, ISONAKA, GEORGE, Dorothy, IQBAL, Ahmar
Published in Chest (01.05.2003)

by LOPEZ VARELA, M. V, MONTES DE OCA, M, MENEZES, A. M. B, HALBERT, R. J, MUINO, A, PEREZ-PADILLA, R, TALAMO, C, JARDIM, J. R. B, VALDIVIA, G, PERTUZE, J, MORENO, D
Published in The European respiratory journal (01.11.2010)

by Celli, Bartolome R., Halbert, R.J., Nordyke, Robert J., Schau, Brigitte
Published in The American journal of medicine (01.12.2005)

by Jensen, I.S., Halbert, R.J., Grosvenor, A., Schwartz, E.L., Rossi, D.G., Naoshy, S., Iqbal, S.U., Xiao, Z., McSweeney, P.A.
Published in Value in health (01.11.2013)

by Paramore, L Clark, Hunter, Craig A, Luce, Bryan R, Nordyke, Robert J, Halbert, R J
Published in Current medical research and opinion (01.01.2010)

by Halbert, R.J., Isonaka, Sharon, George, Dorothy, Iqbal, Ahmar
Published in Chest (01.05.2003)

by Tinkelman, D.G., Price, D.B., Nordyke, R.J., Halbert, R.J.
Published in Respiratory medicine. COPD update (01.05.2006)

by Tinkelman, D.G., Price, D.B., Nordyke, R.J., Halbert, R.J.
Published in Respiratory medicine. COPD update (2006)

by Barr, Mark L, Schenkel, Felicia A, Van Kirk, Annalisa, Halbert, R.J, Helderman, J.Harold, Hricik, Donald E, Matas, Arthur J, Pirsch, John D, Siegal, Bonita R, Ferguson, Ronald M, Nordyke, Robert J
Published in The Journal of heart and lung transplantation (01.10.2003)

by Halbert, R.J, Bokor, Alexander, Castrence-Nazareno, Rowena, Parkinson, MichaelD, Lewis, CharlesE
Published in American journal of preventive medicine (01.07.1998)