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Depression and Mania
DAVID L. DUNNER
Search for the Causes of Schizophrenia
MARY V. SEEMAN; PHILIP SEEMAN
Schizophrenia: Recent Biosocial Developments
STEPHEN V. FARAONE; MING T. TSUANG
The Council on Aging
Gene David Cohen
Polydipsia and Hyponatremia
HANS RITTMANNSBERGER
Dr. Westermeyer Replies
JOSEPH WESTERMEYER
Dr. Bruun Replies
RUTH DOWLING BRUUN
Dr. Book Replies
HOWARD E. BOOK
Drs. Idupuganti and Mujica Reply
SUDHARAM IDUPUGANTI; RAUL MUJICA
The Meaning of Empathy
PETER D. KRAMER
Dysthymia and Depression
SHEKHAR SAXENA; PARTHA SARATH DAS
Drs. Kocsis and Frances Reply
JAMES H. KOCSIS; ALLEN J. FRANCES
Dysthymia and Depression
EILEEN P. RUBINSON; GREGORY M. ASNIS
Dr. Widiger and Associates Reply
THOMAS A. WIDIGER; ALLEN J. FRANCES; ROBERT L. SPITZER; JANET B.W. WILLIAMS