I found some papers that suggest barriers/limitations/concerns:
Scurlock-Evans, L., Upton, P., & Upton, D. (2014). Evidence-based practice in physiotherapy: a systematic review of barriers, enablers and interventions. Physiotherapy, 100(3), 208-219.
Porter, S., & O’Halloran, P. (2012). The use and limitation of realistic evaluation as a tool for evidence‐based practice: a critical realist perspective. Nursing inquiry, 19(1), 18-28.
http://www.ncbi.nlm.nih.gov/pubmed/22212367
Melnyk, B. M., Fineout-Overholt, E., Giggleman, M., & Cruz, R. (2010). Correlates among cognitive beliefs, EBP implementation, organizational culture, cohesion and job satisfaction in evidence-based practice mentors from a community hospital system. Nursing Outlook, 58(6), 301-308.
http://www.ncbi.nlm.nih.gov/pubmed/21074647
Nolan, P., & Bradley, E. (2008). Evidence‐based practice: implications and concerns. Journal of Nursing Management, 16(4), 388-393.
http://www.ncbi.nlm.nih.gov/pubmed/18405254
Davidson, P., Halcomb, E., Hickman, L., Phillips, J., & Graham, B. (2006). Beyond the rhetoric: what do we mean by a'model of care'?.
Broom, A., Adams, J., & Tovey, P. (2009). Evidence-based healthcare in practice: a study of clinician resistance, professional de-skilling, and inter-specialty differentiation in oncology. Social Science & Medicine, 68(1), 192-200.
http://www.ncbi.nlm.nih.gov/pubmed/19010576
Michie, S., Johnston, M., Abraham, C., Lawton, R., Parker, D., & Walker, A. (2005). Making psychological theory useful for implementing evidence based practice: a consensus approach. Quality and safety in health care, 14(1), 26-33.
Melnyk, B. M. (2007). The Evidence‐Based Practice Mentor: A Promising Strategy for Implementing and Sustaining EBP in Healthcare Systems. Worldviews on Evidence‐Based Nursing, 4(3), 123-125.
Suja - it's not so much 'perceived' barriers - as actual barriers that tend to be the problem. In essence, health professional evidence (surveys etc) repeatedly demonstrates that professional capacity across clinical and health care practice does not match any stated willingness to take up evidence-based approaches to practice. Many health practitioner studies have reported low-to-moderate abilities to undertake specific skills associated with evidence-based practice; including identifying clinical problems, translating these problems into answerable questions, reliably being able to search the literature for answers, ability to assess the quality of papers and, specifically, low levels of confidence in their ability to consider and apply best practice. These are large barriers that often prevent required and desired clinical practice reform in its tracks.