TY - JOUR AU - Jenssen, C; Gilja, O H; Serra, A L TI - European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) Policy Document Development Strategy – Clinical Practice Guidelines, Position Statements and Technological Reviews JO - Ultrasound Int Open VL - 5 PY - 2019 DO - 10.1055/a-0770-3965 L3 - PubMed-ID: 30599040 SP - E2 EP - E10 N1 - et al. ER -