Duda, D [A peridural catheter obstructed with glass particles--should a filter always be used in a test dose?]. [electronic resource] - Regional-Anaesthesie Sep 1990 - 186-7 p. digital Publication Type: Case Reports; Letter ISSN: 0171-1946 Subjects--Topical Terms: AdultAnalgesia, Epidural--instrumentationAnalgesia, Obstetrical--instrumentationCatheterization--instrumentationEquipment ContaminationFemaleGlassHumansPregnancy