Airflow efficacy of ballpoint pen tubes: a consideration for use in bystander cricothyrotomy. "OBJECTIVE:To examine the suitability of commonly available ballpoint pens as a substitute emergency ...

These pens go by many names around the world, but they're known mainly by two monikers. One is "ballpoint pen," which describes the principle behind it, and "biro," which is the name of the man who ...

After 40 years of effort to become the “national brand” of multiple generations of Vietnamese customers, Thien Long has aimed to be a billion-dollar enterprise with corporate comprehensive ...