The dedication of our authors and the input of our readers is appreciated and forms the foundation for this resource. Ashley Fischer of Lippincott Williams & Wilkins held our hands throughout the production.

To my wife Anna and sons Jacob and Isaac—thank you for your continued support and inspiration. Thanks to the Cook County Emergency Medicine Attendings and Residents for their contributions to the resource and to enhancing my knowledge and understanding of our unique field.

J.J.S.

I am most appreciative for my family's support. Suzanne Barkin, MD is an exemplary clinician and has been a remarkable role model and teacher for the residents she has trained. Adam, Jill, Jacob, Eli, Michael, and Rachael remind us daily of the importance of our roles as clinicians and reaffirm our commitment to excellence.

It is also important to acknowledge and thank our colleagues nationally and internationally who continue to teach each of us on an ongoing basis and will hopefully find this resource useful in their practices.

R.M.B.

To my wife Marina, and my children Connor, Maia, and Kenny; without your support and understanding, my involvement in academic emergency medicine and this resource would be not possible. To my current residents and past graduates; I hope the information in this resource helps guide your clinical decisions and prompts you to always maintain your intellectual curiosity.

S.R.H.

To my wife Alice whose unflagging support, patience, and humor provide the support for these efforts. To the faculty members at BIDMC who share the vision and high standards that this resource strives to achieve. To Peter who has been a lifelong mentor and a role model.

R.E.W.

To Jill, Jacob, and Eli who provide so much joy, support, laughter, and love.

A.Z.B.

To my wife Helen for her unending patience, support, guidance, and understanding for her support in allowing me the freedom to work on this resource. And to my sons Dylan and David for keeping me grounded to what really matters.

P.S.