Testosterone Trajectories and Reference Ranges in a Large Longitudinal Sample of Male Adolescents

• Ammar Khairullah,

  Affiliation Rotman Research Institute and Institute of Medical Science, University of Toronto, Toronto, Canada

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• Laura Cousino Klein,

  Affiliation Department of Biobehavioral Health and Penn State Institute of the Neurosciences, The Pennsylvania State University, State College, Pennsylvania, United States of America

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• Suzanne M. Ingle,

  Affiliation School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom

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• Margaret T. May,

  Affiliation School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom

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• Courtney A. Whetzel,

  Affiliation Department of Biobehavioral Health and the Center for Healthy Aging, The Pennsylvania State University, State College, Pennsylvania, United States of America

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• Elizabeth J. Susman,

  Affiliation Department of Biobehavioral Health, The Pennsylvania State University, State College, Pennsylvania, United States of America

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• Tomáš Paus

  * E-mail: tpaus@research.baycrest.org

  Affiliation Rotman Research Institute and Institute of Medical Science, University of Toronto, Toronto, Canada

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