Hypothalamic-pituitary-adrenal axis and substance useso many questions—and we can answer themSCHUMANN, GUNTERAuthor informationDivision of Psychological Medicine, MRC-SGDP Centre, Institute of Psychiatry, King's College, London SE5 8AF, UK. E-mail: [email protected]Addiction 101(11):p 1538-1539, November 2006.Copyright © 2006 Blackwell Publishing Ltd.