1. Airflow efficacy of ballpoint pen tubes: a consideration for use in bystander cricothyrotomy. Issue 4 (12th April 2010) Authors: Owens, David; Greenwood, Ben; Galley, Alistair; Tomkinson, Alun; Woolley, Sarah Journal: Emergency medicine journal Issue: Volume 27:Issue 4(2010) Page Start: 317 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗