Free for All

—Letter to the Editor—Free-for-All by Martin Kenneth Starr, Columbia University

—Letter to the Editor—Free-for-All by Glenn T. Wilson, Michigan State University, East Lansing, Michigan

—Letter to the Editor—Free-for-All by Murray A. Geisler, The RAND Corporation, Santa Monica, California

—Letter to the Editor—Free-for-All by Bernard Giffler, C-E-I-R, Inc., New York, N.Y.

—Letter to the Editor—Free-for-All by W. A. Reinke, The Johns Hopkins University, School of Hygiene and Public Health, Baltimore, Maryland

—Acknowledgement