Bone marrow concentrate and bovine bone mineral for sinus floor augmentation: a controlled, randomized, single blinded clinical and histological trial – per-protocol analysis. Sauerbier S, Rickert D, Gutwald R, Nagursky H, Oshima T, Xavier SP, Christmann J, Kurz P, Menne D, Vissink A, Raghoebar G, Schmelzeisen R, Wagner W, Koch FP Tissue Engineering: Part A 2011;17:2187-2197 (Grant CF10701) SOURCE