TY - BOOK TI - Protection in nuclear medicine and ultrasound diagnostic procedures in children T2 - Report, no.<73> SN - 0913392634 SN - 0083209X PY - 1983/// CY - Bethesda, Md. PB - NCRP KW - RADIACIONES -PROTECCION KW - RADIODIAGNOSTICO KW - PEDIATRIA KW - ULTRASONIDO N1 - Recommendations of the NCRP; Apéndices y bibliografía: p.31-64 ER -