1. Use of ultrasound in the diagnosis of abdominal swellings;Donald, I.,1963
2. Morphological and functional relations of Graafian follicle growth to ovulation in women using ultrasonic, laparoscopic and biochemical measurement;Kerin, J.F.; Edmonds, D.K.; Warnes, G.M.;Br J Obstet Gynaecol,1981
3. Mittelschmerz: sonographic demonstration;Hann, L.E.; Hall, D.A.; Black, E.B.; Ferrucci, J.T.;JAMA,1979
4. Mittelschmerz is a preovulatory symptom. Br Med3';O'Herlihy, C.; Robinson, H.P.; Ch de Crespigny, L.J.,1980