Ryoko Yamazawa

A self-reported instrument for prodromal symptoms of psychosis: Testing the clinical validity of the PRIME Screen—Revised (PS-R) in a Japanese population

Hisato Kobayashi, Takahiro Nemoto, Hiroki Koshikawa et al. · Schizophrenia Research · 2008 · 142 citations

Psychiatry, Psychiatric Disorders, Clinical Validity +15

Clinical practice and research activities for early psychiatric intervention at Japanese leading centres

Masafumi Mizuno, Michio Suzuki, Kazunori Matsumoto et al. · Early Intervention in Psychiatry · 2009 · 46 citations

Duration of untreated psychosis and pathways to psychiatric services in first‐episode schizophrenia

Ryoko Yamazawa, Masafumi Mizuno, Takahiro Nemoto et al. · Psychiatry and Clinical Neurosciences · 2003 · 38 citations

Psychotherapy, Psychiatric Evaluation, First-episode Schizophrenia Patients +17

Effects of Aripiprazole on Insight and Subjective Experience in Individuals With an At-Risk Mental State

Hiroyuki Kobayashi, Keiko Morita, Kiyoaki Takeshi et al. · Journal of Clinical Psychopharmacology · 2009 · 29 citations

Association Between Duration of Untreated Psychosis, Premorbid Functioning, and Cognitive Performance and the Outcome of First-Episode Schizophrenia in Japanese Patients: Prospective Study

Ryoko Yamazawa, Takahiro Nemoto, Hiroyuki Kobayashi et al. · Australian & New Zealand Journal of Psychiatry · 2008 · 28 citations