After 1912, 1925, 1944, 1945, and 1958, 'schizophrenia' was used in 1964 in the International Psychiatry Clinics I, p. 743.
The passage reads:
"While many of these cases can be grouped into
THE CLASSIC FORMS OF SCHIZOPHRENIA,
such as simple, catatonic, hebephrenic, or paranoid,
others can NOT be so classified and will, therefore,
be DIAGNOSED as
MIXED OR UNDIFFERENTIATED
TYPES OF SCHIZOPHRENIA."