Journal of Critical Care · 2014 · 55 citations · 16 references
MedicineSurgeryUltrasonographyUltrasoundVascular SurgeryCentral Venous Access CareIntravenous Access DevicesUltrasound-guided ProceduresVascular AccessVascular Access SafetyVenous AccessPeripheral Venous CannulationUltrasound GuidanceUltrasound-guided Catheter PlacementUltrasound-guided Central Venous AccessUltrasound-guided Central Venous Catheter PlacementUltrasound-guided Peripheral Intravenous AccessVascular Access EvaluationVenous Ultrasound
16
Optimal two-stage designs for phase II clinical trials
Richard Simon · Controlled Clinical Trials · 1989 · 3.6K citations