Trephine biopsy for diffuse lung lesions.

There has been an increase recently in the use of L.S.D. in this country on a casual basis and not under medical supervision. Use in this way as a "mind-expanding" drug has been extensively discussed in the press and on television, and has been advocated in non-medical journals. After a similar interest in the non-medical uses of the drug and extensive self-medication by fringe groups in New York therc was a sudden upsurge of admissions to Bellevue Hospital with acute reactions from its use These fell into three groups: (1) acute panic reactions; (2) recurrence of symptoms while abstaining from the drug, which was more likely to occur after multiple ingestion; and (3) prolonged psychosis.