Survival with tiotropium compared to long-acting Beta-2-agonists in chronic obstructive pulmonary disease
Gershon AS, Wang L, To T, Luo J, Upshur RE. COPD. 2008; 5(4):229-34.
Gershon AS, Wang L, To T, Luo J, Upshur RE. COPD. 2008; 5(4):229-34.
To T, Gershon A, Wang C, Dell S, Cicutto L. Arch Pediatr Adolesc Med. 2007; 161(12):1197-204.
Gershon A, Wang C, Cicutto L, To T. Healthc Q. 2007; 10(1):22-4.