Correction: A study to investigate the prevalence of headache disorders and migraine among people registered in a health insurance association in Japan

• Fumihiko Sakai,
• Koichi Hirata,
• Hisaka Igarashi,
• Takao Takeshima,
• Takeo Nakayama,
• Hiromi Sano,
• Hiroyuki Kondo,
• Yoshiyuki Shibasaki,
• Nobuyuki Koga

Affiliations

Fumihiko Sakai

Saitama International Headache Center, Saitama Neuropsychiatric Institute

Koichi Hirata

Department of Neurology, Dokkyo Medical University

Hisaka Igarashi

Department of Internal Medicine, Headache Care Unit, Fujitsu Clinic

Takao Takeshima

Headache Center, Department of Neurology, Tominaga Hospital

Takeo Nakayama

Department of Health Informatics, Graduate School of Medicine and School of Public Health, Kyoto University

Hiromi Sano

Medical Affairs, Otsuka Pharmaceutical Co., Ltd

Hiroyuki Kondo

Medical Affairs, Otsuka Pharmaceutical Co., Ltd.

Yoshiyuki Shibasaki

Medical Affairs, Otsuka Pharmaceutical Co., Ltd.

Nobuyuki Koga

Medical Affairs, Otsuka Pharmaceutical Co., Ltd.