The Evidence for the Use of Growth Factors and Active Skin Substitutes for the Treatment of Non-Infected Diabetic Foot Ulcers (DFU): A Health Technology Assessment (HTA) - Buchberger, B.; Follmann, M.; Freyer, D.; Huppertz, H.; Ehm, A.; Wasem, J. (Experimental and Clinical Endocrinology & Diabetes, 2011)