1. Experiments on decompression bubbles in the circulation using ultrasonic and electromagnetic flowmeters;Spencer;J. Occupat. Med.,1969
2. Ultrasound detection of fat emboli;Kelly;Surg. Forum,1972
3. Detection of middle cerebral artery emboli during carotid endarterectomy using transcranial Doppler ultrasonography;Spencer;Stroke,1990
4. Detection of intracranial emboli in patient with symptomatic extracranial carotid artery disease;Siebler;Stroke,1992
5. Venous air embolism: a review;Palmon;J. Clin. Anesth.,1997