Oshima I, Cho N, Takahashi K: Effective components of a nationwide case management program in Japan for individuals with severe mental illness. Community Mental Health Journal 40: 525-537, 2004

Oshima I, Kuno E: Living Arrangements of Individuals with Schizophrenia in Japan: Impact of Community-Based Mental Health Services. International Journal of Social Psychiatry (in press)

Oshima I, Mino Y, Inomata Y: Institutionalism and schizophrenia in Japan -Social environments and negative symptoms: Nationwide survey of in-patients. Br J Psychiatry 183: 50-56, 2003.

Oshima I, Ito J: Case Management Systems in the U.S. : A Case Study of Seven Cities.Japanese J Psychiatric Nursing 29: 70-74, 2002

Okawa N, Oshima I, Cho N, Makino H, Oka I, Ikebuchi E, Ito J: Development of 'Self-Efficacy for Community Life Scale' for People with Schizophrenia: Its Reliability and Validity. Seishin Igaku 43: 727-735, 2001 (In Japanese)

Oshima I: Issues and perspectives of community care revolution in 2003 for people with severe mental illnesses. Community Social Work Research 29: 16-24, 2001 (In Japanese)

Oshima I, Cho N: Case management and psychoeducation for the people with schizophrenia: From the perspective of empowerment and normalization. Seishin Igaku 43: 1129-1134, 2001 (In Japanese)

Oshima I, Cho N, Anzai N, Takahashi K: The development of care assessment schedule in the case management guideline for the people with mental disabilities in Japan: reliability and validity of the needs for care scale and handicaps scale. Seishin Igaku 42: 809-817, 2000 (In Japanese)

Oshima I, Cho N, Takahashi K: The process assessment of the case management guideline for the people with mental disabilities in Japan: The results from national field trial. Seishin Igaku 42: 127-136, 2000 (In Japanese)

Mino Y, Oshima I, Tsuda T, Okagami K: No relationship between schizophrenic birth and influenza epidemics in Japan. J Psychiatric Research 34: 133-138, 2000

Mino Y, Oshima I, Okagami, K: Seasonality of birth in patients with mood disorders in Japan. J Affective Disorders 59: 41-46, 2000.

Ichiki M, Kunugi H, Takei N, Murray RM, Baba H, Arai H, Oshima I, Okagami K, Sato T, Hirose T, Nanko S: Intra-uterine physical growth in schizophrenia: evidence confirming excess of premature birth. Psychological Medicine 30:597-604, 2000

Oshima I: Principle and basic usage of case management guidelines for the people with mental disabilities in Japan. Community Mental Health Review 30: 17-21, 1999

Oshima I, Naito K, Tokunaga J: Evaluation of effectiveness of community mental health system in Kawasaki city -A comparison with national statistics. Japanese J Public Health 45: 722-731, 1998 (In Japanese)

Oshima I: Present personal care services for the people with mental disability and issues for the legalization: Home help services and care management. Japanese J Hospital Community Pshychiatry 40(4): 331-337, 1998.

Oshima I, Naito K, Tokunaga J: The living status and health and welfare needs of schizophrenics living alone in Kawasaki Metropolitan City -From the analysis of citywide survey. Japanese J Hospital Community Pshychiatry 41(1): 50-56, 1998.

Oshima I: Assessment of 'quality of services' in community mental health programs: from the perspective of normalization, Quality of Life, and satisfaction of users. Archives of Psychiatric Diagnostics and Clinical Evaluation 9(3): 341-353,1998.

Oshima I, Oketani H: Personal care services in psychiatric group homes: From the outcomes of a nationwide survey for the community mental health services. Japanese Journal of Psychiatric Rehabilitation 1: 44-52, 1997 (In Japanese)

Oshima I, Naito K, Tokunaga J, Kurita M: Health and welfare need assessment of the mentally disabled living in Kawasaki Metropolitan City -The current problems to be solved in the city and the planning estimated by the assessment. Japanese Bulletin of Social Psychiatry 5(2): 201-213, 1997 (In Japanese)

Oshima I, Yoshizumi A, Inazawa K, Inomata Y, Okagami K: The intention of the community living and the idea of the life style after the discharge expressed by long stay patients: An analysis of a nationwide self-rating survey for long stay schizophrenics in about 40,000 psychiatric beds in Japan. Japanese Journal of Hospital and Community Psychiatry 1996; 38:558-67. (In Japanese)

Oshima I, Yoshizumi A, Inazawa K, et al: The attitudes toward the community living and the determinant factors for the long-stay patients in Japan: The analysis of a nationwide self-rating survey. Seishin Igaku 38: 1248-1256, 1996 (In Japanese)

Ito J, Oshima I. Distribution of EE and its relationship to relapse in Japan. Int J Ment Health Vol 24. pp23-37, 1995

Oshima I, Ito J, Yagihashi M, Okagami K: A study on the scaling methods of Expressed Emotion Scales from the perspective of relapse predictability of schizophrenia. Psychiatria et Neurologia Japonica 96: 298-315, 1994.(In Japanese)

Oshima I, Ito J, Yagihashi M, Okagami K: The relationship between Expressed Emotion and daily life functioning of families who take care of the schizophrenics members. Psychiatria et Neurologia Japonica 96: 493-512, 1994. (In Japanese)

Oshima I, Okagami K: Psycho-social background of families with long-stay psychiatric patients in Japan: The analysis of the nationwide survey by national federation of families. Seishin Igaku 34: 479-488, 1992 (In Japanese)

Oshima I, Ueda H, Yamazaki Y, Shiiya J: Social perception toward the mentally disabled among general inhabitants who were against building the public psychiatric emergency center in a satellite town of Tokyo. Journal of Mental Health 38: 11-23,1992 (In Japanese)

Oshima I, Inomata Y, Toida S, et al: Possibility to be discharged of long-stay psychiatric patients and their suitable accommodation need in Japan: Nationwide survey of 40,000 psychiatric beds. Psychiatria et Neurologia Japonica 93: 582-602, 1991.(In Japanese)

Oshima I: A study on family support system for the mentally disabled from the perspective of its functions and resources. Psychiatria et Neurologia Japonica 89: 204-241, 1987.(In Japanese)