APA

Bjorner J. B., Kosinski M. & Ware J. E. (20040128). Using item response theory to calibrate the Headache Impact Test (HIT) to the metric of traditional headache scales. : Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation.

Chicago

Bjorner Jakob B, Kosinski Mark and Ware John E. 20040128. Using item response theory to calibrate the Headache Impact Test (HIT) to the metric of traditional headache scales. : Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation.

Harvard

Bjorner J. B., Kosinski M. and Ware J. E. (20040128). Using item response theory to calibrate the Headache Impact Test (HIT) to the metric of traditional headache scales. : Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation.

MLA

Bjorner Jakob B, Kosinski Mark and Ware John E. Using item response theory to calibrate the Headache Impact Test (HIT) to the metric of traditional headache scales. : Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation. 20040128.