@inbook{1181107346, author={Matthew L. Boulton and Robert B. Wallace}, title={Foreword}, booktitle={Maxcy-Rosenau-Last Public Health & Preventive Medicine, 16e}, publisher={McGraw Hill}, address={New York, NY}, year={2022}, url={accessmedicine.mhmedical.com/content.aspx?aid=1181107346} }