1. Safety of diagnostic ultrasound in obstetrics;Hellman, L.M.; Duffus, G.M.; Donald, I.; Sund6n, B.;Lancet,1970
2. Chromosome aberrations induced by an ultrasonic fetal pulse detector;MacIntosh, I.J.C.; Davey, D.A.;British Medical Journal,1970
3. Examination of sonicated human lymphocytes for chromosome damage;Coakley, W.T.; Slade, J.S.;(Abstract.) British Journal of Radiology,1971
4. Ultrasound and chromosome damage;Watts, P.L.; Hall, A.J.; Fleming, J.E.;British Journal of Radiology,1972
5. Chromosome breakage and ultrasound;Boyd, E.; Abdulla, U.; Donald, I.; Fleming, J.E.; Hall, A.J.; Ferguson-Smith, M.A.;British Medical Journal,1971