Hagg U has not been the first author on any articles in the CIRRIE database.
Hagg U has been an author on 3 articles in the CIRRIE database:
Ahrens A, McGrath C, Hagg U. (2011). A systematic review of the efficacy of oral appliance design in the management of obstructive sleep apnoea. European Journal of Orthodontics 33(3):318-24.
Ahrens A, McGrath C, Hagg U. (2010). Subjective efficacy of oral appliance design features in the management of obstructive sleep apnea: a systematic review. American Journal of Orthodontics and Dentofacial Orthopedics 138(5):559-76.
Hou HM, Hagg U, Sam K, Rabie AB, et al. (2006). Dentofacial characteristics of Chinese obstructive sleep apnea patients in relation to obesity and severity. Angle Orthodontist 76(6):962-9.
The most used subject headings in articles written by this author in the CIRRIE database are: