Ultrasound in the diagnosis of maxillary and frontal sinusitis.
Card's contents:537,247 REVONTA MATTI Ultrasound in the diagnosis of maxillary and frontal sinusitis. Turku 1980 [druk. :] Helsingin Liikekirja— paino Oy, Helsinki 8* s. 54, nlb, 1 Acta Oto—Laryngologica, suppl. 370