Spatial distribution of blood vessels and CD34+ hematopoietic stem and progenitor cells within the marrow cavities of human cancellous bone. - Watchman CJ; Bourke VA; Lyon JR; Knowlton AE; Butler SL; Grier DD; Wingard JR; Braylan RC; Bolch WE (Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 2007)