Arnold M Markoe -
Cell and Radiation Biology Laboratories (Chief, Samuel Lesher), Clinical Radiation Therapy Research Center (Chief, Joseph P. Concannon) Division of Radiology, Allegheny General Hospital, Pittsburgh, USA
James P Okunewick -
Cell and Radiation Biology Laboratories (Chief, Samuel Lesher), Clinical Radiation Therapy Research Center (Chief, Joseph P. Concannon) Division of Radiology, Allegheny General Hospital, Pittsburgh, USA