1. Hemodynamic responses to shock in young trauma patients: Need for invasive monitoring;Abou-Khalil;Crit Care Med,1994
2. Concepts of leveling and zeroing in hemodynamic monitoring;Ahrens;Cath-Lab Digest,1995
3. Changing perspectives in the assessment of oxygenation;Ahrens;Critical Care Nurse,1993
4. Do PA catheters help or harm patients? AACN addresses issue;Ahrens;AACN News,1998
5. Frequency requirements for zeroing transducers in hemodynamic monitoring;Ahrens;Am J Crit Care,1995