title: AN IMPROVED NEEDLE FOR ASPIRATION OF MARROW FROM DENSE BONE.
mesh_terms: D015519:Bone Density; D001853:Bone Marrow; D001856:Bone Marrow Examination; D006801:Humans; D009339:Needles; D013525:Surgical Instruments; D014675:Vegetables
keywords: BONE MARROW EXAMINATION; SURGICAL INSTRUMENTS