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- [6] COMMENTARY - THE SAFETY OF DIAGNOSTIC ULTRASOUND BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1988, 95 (07): : 730 - 730
- [10] THE SAFETY OF DIAGNOSTIC ULTRASOUND - COMMENTARY BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1988, 95 (05): : 537 - 537