APA
Grammatopoulou E. P., Skordilis E. K., Georgoudis G., Haniotou A., Evangelodimou A., Fildissis G., Katsoulas T. & Kalagiakos P. (20141117). Hyperventilation in asthma: a validation study of the Nijmegen Questionnaire--NQ. : The Journal of asthma : official journal of the Association for the Care of Asthma.
Chicago
Grammatopoulou Eirini P, Skordilis Emmanouil K, Georgoudis Georgios, Haniotou Aikaterini, Evangelodimou Afroditi, Fildissis George, Katsoulas Theodoros and Kalagiakos Panagiotis. 20141117. Hyperventilation in asthma: a validation study of the Nijmegen Questionnaire--NQ. : The Journal of asthma : official journal of the Association for the Care of Asthma.
Harvard
Grammatopoulou E. P., Skordilis E. K., Georgoudis G., Haniotou A., Evangelodimou A., Fildissis G., Katsoulas T. and Kalagiakos P. (20141117). Hyperventilation in asthma: a validation study of the Nijmegen Questionnaire--NQ. : The Journal of asthma : official journal of the Association for the Care of Asthma.
MLA
Grammatopoulou Eirini P, Skordilis Emmanouil K, Georgoudis Georgios, Haniotou Aikaterini, Evangelodimou Afroditi, Fildissis George, Katsoulas Theodoros and Kalagiakos Panagiotis. Hyperventilation in asthma: a validation study of the Nijmegen Questionnaire--NQ. : The Journal of asthma : official journal of the Association for the Care of Asthma. 20141117.