The following references have been included to broaden the range of material that demonstrate the RoI of health libraries. If you have conducted a literature search on value, impact and benefits, please feel free to add below:-
Ali, I. Library provided information and clinical decision making: a study of two hospitals in Canberra. AARL. 2000; 31(1): 30–45. http://www.tandfonline.com/doi/abs/10.1080/00048623.2000.10755109
Abels EG, Cogdill KW, Zach L. Identifying and communicating the contributions of library and information services in hospitals and academic health sciences centers. J Med Libr Assoc. 2004 Jan; 92(1): 46–55.
Cuddy TM. Value of hospital libraries: the Fuld Campus study. J Med Libr Assoc. 2005 Oct; 93(4): 446–449.
Holst R, Funk CJ, Adams HS, Bandy M, Boss CM, Hill B, Joseph CB, Lett RK. Vital pathways for hospital librarians: present and future roles. J Med Libr Assoc. 2009 Oct; 97(4): 285–92. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2759170/
Lacey Bryant, S. and Gray, A. “Demonstrating the positive impact of information support on patient care in primary care: a rapid literature review” Health and Information Libraries Journal, June 2006, 23 (2), 118-125
Perley CM, Gentry CA, Fleming AS, Sen KM. Conducting a user-centered information needs assessment: the Via Christi Libraries’ experience. J Med Libr Assoc. 2007 Apr; 95(2): 173–181.
Perrier, L. et al. Effects of librarian-provided services in healthcare settings: a systematic review. J Am Med Inform Assoc. 2014 Nov-Dec;21(6):1118-24. http://www.ncbi.nlm.nih.gov/pubmed/24872341
Tooey MJ. A pathway for hospital librarians: why is it vital? J Med Libr Assoc. 2009 Oct; 97(4): 268–272.
Turner J. Demonstrating library value: the use made of information provided by an NHS library service, and how that relates to organisational goals. Masters’ dissertation. Wales: Aberystwyth University; 2009.
Weightman A, Urquhart C, Spink S, Thomas R. Developing a toolkit for assessing the 55impact of health library services on patient care: report to LKDN (Libraries and Knowledge Development Network). Wales: Department of Information Studies, Aberystwyth University; 2007.
Weightman A, Urquhart C, Spink S, Thomas R. The value and impact of information provided through library services for patient care: developing guidance for best practice. Health Info and Libr J. 2008; 26: 63–71.
Work by PIF – look at the references in the full report http://www.pifonline.org.uk/wp-content/uploads/2013/05/PiF-full-report-FINAL-new.pdf
Worth every cent and more: An independent assessment of the return on investment of health libraries in Australia. Health Libraries Inc. and Australian Library and Information Association (2013) https://www.alia.org.au/sites/default/files/Worth-Every-Cent-and-More-FULL-REPORT.pdf