prepared by 142 specialists ; Douglas M. Considine, editor-in-chief. prepared by 110 specialists ; Douglas M. Considine, editor-in-chief. Prepared by a staff of specialists; Douglas M. Considine, editor-in-chief. ... prepared by a staff of specialists, Donald M. Liddell, editor-in-chief. Douglas M. Considine, editor-in-chief. Douglas M. Considine,editor-in-chief.