Ronald I. Shorr, MD, MS; Wayne A. Ray, PhD; James R. Daugherty, MS; Marie R. Griffin, MD, MPH Arch Intern Med. 1993;153(14):1665-1670. doi:10.1001/archinte.1993.00410140047006
Ronald I. Shorr, MD, MS; Wayne A. Ray, PhD; James R. Daugherty, MS; Marie R. Griffin, MD, MPHArch Intern Med. 1993;153(14):1665-1670. doi:10.1001/archinte.1993.00410140047006