1. Needle (aspiration) biopsy;Ball;J Tenn Med Assoc,1934
2. The relation of vascular disease to the hypertensive state;Castleman;JAMA,1943
3. La biopsia-puncturnal del rinon no megalicoconsiderationes generales y aportacion de un nuevo metodo;Perez Ara;Bol Liga contra cancer,1950
4. Aspiration biopsy of kidney’;Iverson;Amer J Med,1951
5. Needle renal biopsy under image amplifier control;Lusted;Amer J Roentgenology,1956