DEDICATION           This volume is dedicated to the many individuals who participated in the environmental public health studies described in Chapter 1. Without their Public Health Service is especially grateful to those few individuals who permitted us, through repeat testing, to ascertain their findings more fully.  These individuals give special meaning to concepts of informed consent, confidentiality, clinical care, and citizenship. It is our hope that we will remain worthy of their trust, and that this volume will benefit the health of all citizens.   Return To Contents