World Health Organization Training in diagnostic ultrasound :essentials,principles and standards: report of WHO study group. - - Geneva W H O 1998 - 46 p. 24 cm. - WHO Technical report series no.875. . Ultrasonography, Health Personnel -Education ISBN: 92 4 120875 9 Subjects--Topical Terms: Health Personnel -EducationUltrasonography Dewey Class. No.: SERIALS / WHO