Knight Lab January 1, 1989 V. Pai, Ingrid L. Kwee, Robert T. Knight, Tsutomu Nakada, 1989 Cocaine use unmasking unsuspected CNS abnormalities Knight Lab January 1, 1989 V. Pai, Ingrid L. Kwee, Robert T. Knight, Tsutomu Nakada, 1989 Authors:V. PaiIngrid L. KweeRobert T. KnightTsutomu NakadaDate: 1989