title: Confirming position of venous port.
authors.forename: D T
authors.initials: DT
authors.lastname: Sleijfer
authors.forename: N H
authors.initials: NH
authors.lastname: Mulder
authors.forename: E G
authors.initials: EG
authors.lastname: de Vries
mesh_terms: D002408:Catheters, Indwelling / Q000009:adverse effects*; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000175:diagnosis*; D006801:Humans; D008278:Magnesium Sulfate
chemical_list: D008278:Magnesium Sulfate