The Annals of Thoracic Surgery
The Annals of Thoracic Surgery > 1997 > 64 > 1 > 249-251
The Annals of Thoracic Surgery > 1997 > 64 > 4 > 1167-1169
The Annals of Thoracic Surgery > 1997 > 64 > 1 > 249-251
The Annals of Thoracic Surgery > 1997 > 64 > 4 > 1167-1169