Farquhar, D. (2001). Beta-blockers in severe congestive heart failure. CMAJ.
Chicago Style aipamenaFarquhar, Donald. "Beta-blockers in Severe Congestive Heart Failure." CMAJ 2001.
MLA aipamenaFarquhar, Donald. "Beta-blockers in Severe Congestive Heart Failure." CMAJ 2001.
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