title: Assessment of P wave duration and P wave dispersion in high level football referees.
authors.affiliation: School of Physical Education and Sports, Istanbul University, Istanbul, Turkey - iyucesir@yahoo.com.
authors.forename: Ilker
authors.initials: I
authors.lastname: Yucesir
authors.affiliation: Department of Internal Medicine, Dr. Lutfi Kirdar Kartal Educational and Research Hospital, Istanbul, Turkey.
authors.forename: Banu
authors.initials: B
authors.lastname: Sahin Yildiz
authors.affiliation: Department of Anatomy, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey.
authors.forename: Osman
authors.initials: O
authors.lastname: Coskun
authors.affiliation: Department of Sports Medicine, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey.
authors.forename: Sertac
authors.initials: S
authors.lastname: Yakal
authors.affiliation: Department of Sports Medicine, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey.
authors.forename: Bulent
authors.initials: B
authors.lastname: Bayraktar
authors.affiliation: Department of Sports Medicine, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey.
authors.forename: Gokhan
authors.initials: G
authors.lastname: Metin
authors.affiliation: Department of Physiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Altan
authors.affiliation: Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Educational and Research Hospital, Istanbul, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Yildiz