1. The status of permanent pacing of the heart in the United States and Canada;Parsonnet;Ann Cardiologie Angeiologie,1971
2. A survey of cardiac pacing in the United States and Canada (abstr);Parsonnet,1973
3. World survey on long-term follow-up of cardiac pacing;Parsonnet,1977
4. Survey of pacemaker practices in the United States;Parsonnet,1979
5. Letter to Richard S. Schweiker, Secretary, Department of Health and Human Services. July 7;Greenberg,1982