R. Helsel
发表
J. I. Matthews,
H. M. Richey,
R. Helsel,
1987,
Archives of internal medicine.
R. Helsel,
R. Babka,
James Petress,
1997,
Perfusion.
J. I. Matthews,
H. M. Richey,
R. Helsel,
1984,
Chest.
A. Cohen,
R. Helsel,
B. Grishkin,
1989,
The Annals of thoracic surgery.
R. Helsel,
B. Grishkin,
2000,
The Annals of thoracic surgery.
M. P. Hosking,
R. Helsel,
R. A. Popp,
1995
.
A. Cohen,
R. Helsel,
B. Grishkin,
1988,
The Annals of thoracic surgery.
R. Knight,
R. Helsel,
B. Grishkin,
1990,
Journal of Cardiothoracic Anesthesia.