APA

Gradinger F., Köhler B., Khatami R., Mathis J., Cieza A. & Bassetti C. (20110613). Problems in functioning from the patient perspective using the International Classification of Functioning, Disability and Health (ICF) as a reference. : Journal of sleep research.

Chicago

Gradinger Felix, Köhler Barbara, Khatami Ramin, Mathis Johannes, Cieza Alarcos and Bassetti Claudio. 20110613. Problems in functioning from the patient perspective using the International Classification of Functioning, Disability and Health (ICF) as a reference. : Journal of sleep research.

Harvard

Gradinger F., Köhler B., Khatami R., Mathis J., Cieza A. and Bassetti C. (20110613). Problems in functioning from the patient perspective using the International Classification of Functioning, Disability and Health (ICF) as a reference. : Journal of sleep research.

MLA

Gradinger Felix, Köhler Barbara, Khatami Ramin, Mathis Johannes, Cieza Alarcos and Bassetti Claudio. Problems in functioning from the patient perspective using the International Classification of Functioning, Disability and Health (ICF) as a reference. : Journal of sleep research. 20110613.