by Unutzer, Jurgen, Katon, Wayne J, Fan, Ming-Yu, Schoenbaum, Michael C, Lin, Elizabeth H B, Della Penna, Richard D, Powers, Diane
Published in The American journal of managed care (01.02.2008)

by Chodosh, Joshua, Mittman, Brian S., Connor, Karen I., Vassar, Stefanie D., Lee, Martin L., DeMonte, Robert W., Ganiats, Theodore G., Heikoff, Lisa E., Rubenstein, Laurence Z., Della Penna, Richard D., Vickrey, Barbara G.
Published in Journal of the American Geriatrics Society (JAGS) (01.08.2007)

by Vickrey, Barbara G, Mittman, Brian S, Connor, Karen I, Pearson, Marjorie L, Della Penna, Richard D, Ganiats, Theodore G, Demonte, Jr, Robert W, Chodosh, Joshua, Cui, Xinping, Vassar, Stefanie, Duan, Naihua, Lee, Martin
Published in Annals of internal medicine (21.11.2006)

by Gade, Glenn, Venohr, Ingrid, Conner, Douglas, McGrady, Kathleen, Beane, Jeffrey, Richardson, Robert H, Williams, Marilyn P, Liberson, Marcia, Blum, Mark, Della Penna, Richard
Published in Journal of palliative medicine (01.03.2008)

by Unützer, Jürgen, Katon, Wayne, Callahan, Christopher M, Williams, Jr, John W, Hunkeler, Enid, Harpole, Linda, Hoffing, Marc, Della Penna, Richard D, Noël, Polly Hitchcock, Lin, Elizabeth H. B, Areán, Patricia A, Hegel, Mark T, Tang, Lingqi, Belin, Thomas R, Oishi, Sabine, Langston, Christopher, for the IMPACT Investigators
Published in JAMA : the journal of the American Medical Association (11.12.2002)

by Unützer, Jürgen, Katon, Wayne, Callahan, Christopher M., Williams Jr, John W., Hunkeler, Enid, Harpole, Linda, Hoffing, Marc, Della Penna, Richard D., Noel, Polly Hitchcock, Lin, Elizabeth H. B., Tang, Lingqi, Oishi, Sabine
Published in Journal of the American Geriatrics Society (JAGS) (01.04.2003)

by Leutz, Walter, Greenlick, Merwyn, Nonnenkamp, Lucy, della Penna, Richard
Published in Journal of aging & social policy (2002)

by Engelhardt, Joseph B, Rizzo, Victoria M, Della Penna, Richard D, Feigenbaum, Paul A, Kirkland, Kristen A, Nicholson, Jeremy S, O'Keeffe-Rosetti, Maureen C, Venohr, Ingrid M, Reger, Pamela Gray, Tobin, Daniel R
Published in The American journal of managed care (01.11.2009)

by Rizzo, Victoria Marie, Engelhardt, Joseph, Tobin, Daniel, Della Penna, Richard, Feigenbaum, Paul, Sisselman, Amanda, Nicholson, Jeremy S, Niemeyer, Becky, Albert, Elise, Lombardo, Fred
Published in Journal of palliative medicine (01.03.2010)

by Della Penna, Richard, Martel, Helene, Neuwirth, Esther B, Rice, Jennifer, Filipski, Marta I, Green, Jennifer, Bellows, Jim
Published in BMC health services research (29.12.2009)

by Della Penna, Richard D.
Published in Generations (San Francisco, Calif.) (01.07.1999)

by Baraff, Larry J., Lee, Thomas J., Kader, Susan, Penna, Richard Della
Published in Academic emergency medicine (01.12.1999)

by Baraff, Larry J., Lee, Thomas J., Kader, Susan, Penna, Richard Della
Published in Academic emergency medicine (01.12.1999)

by Roblin, D W, Juhn, P I, Preston, B J, Della Penna, R, Feitelberg, S P, Khoury, A, Scott, J C
Published in Medical care (01.11.1999)

by Della Penna, Richard D
Published in Permanente journal (01.03.2013)

by Lin, Elizabeth H. B, Katon, Wayne, Von Korff, Michael, Tang, Lingqi, Williams, Jr, John W, Kroenke, Kurt, Hunkeler, Enid, Harpole, Linda, Hegel, Mark, Arean, Patricia, Hoffing, Marc, Della Penna, Richard, Langston, Chris, Unützer, Jürgen, for the IMPACT Investigators
Published in JAMA : the journal of the American Medical Association (12.11.2003)

by Della Penna, Richard
Published in Permanente journal (01.09.2009)

by Della Penna, Richard
Published in Permanente journal (01.04.2005)

by Della Penna, Richard
Published in Permanente journal (2003)

by Conner, Douglas, McGrady, Kathleen, Gade, Glenn, Venohr, Ingrid, Beane, Jeffrey, Richardson, Robert H, Williams, Marilyn P, Liberson, Marcia, Blum, Mark, Della Penna, Richard
Published in Journal of palliative medicine (01.05.2009)