P C Langley, Health Economics in the Drug Life Cycle, London: Urch Publishing, November 2002 (135 pp.)
P C Langley, The importance of health economics in successfully achieving a sustainable price for reimbursement, The Pharmaceutical Pricing Compendium, pp. 49-60 (London: Urch Publishing, 2003).
P C Langley, D White, S Drake, Patterns of Treatment and Resource Utilization in the Treatment of External Genital Warts in England and Wales: The Results of a Clinical Audit, International Journal of STD and AIDS, 2004; 15: 473-468.
P C Langley, Focusing Pharmacoeconomic Activities: Reimbursement or the drug life cycle, Current Medical Research and Opinion, 2004; 20(2): 181-188.
P C Langley, The NICE Reference Case Requirement: Implications for Manufacturers and Health Systems, Pharmacoeconomics, 2004; 22(4): 267-271.
P C Langley. Patkar AD, Boswell KA, Benson CJ, Schein JR. Adverse event profile of tramadol in recent clinical studies of chronic osteoarthritis pain. Curr Med Res Opin. 2010;26(1):239-51.
P C Langley, Muller-Schwefe G, Nicolaou A et al. The societal impact of pain in the European Union: health-related quality of life and healthcare resource utilization. J Med Econ. 2010;13(2):571-81.
P C Langley, Muller-Schwefe G, Nicolaou A et al. The impact of pain on labor force participation, absenteeism and presenteeism in the European Union. J Med Econ. 2010;13(4):662-72.
P C Langley. The prevalence, correlates and treatment of pain in the European Union. Curr Med Res Opin. 2011 Feb;27(2):463-80.
P C Langley, Tornero Molina J, Margarit Ferri C, et al. The association of pain with labor force participation, absenteeism and presenteeism in Spain. J Med Econ. 2011;14(6):835-45
P C Langley. The societal burden of pain in Germany: Health related quality of life, health status and direct medical costs. J Med Econ. 2012;15(6):1201-15.
P C Langley, Van Litsenburg C, Cappelleri J et al. The burden associated with neuropathic pain in Western Europe. J Med Econ. 2013;16(1):85-95.
P C Langley, Liedgens H. Time since diagnosis, treatment pathways and current pain status: a retrospective assessment in a back pain population. J Med Econ. 2013;16(5):701-9
Langley P. The status of modeled claims. J Med Econ 2015;18(12):991-992
Langley P. Validation of modeled pharmacoeconomic claims in formulary submissions. J Med Econ 2015;18(12):993-999