Correspondance
Caihua Sang, MD, and Changsheng Ma, MD, Department of Cardiology,
Beijing Anzhen Hospital, Capital Medical University, No 2, Anzhen Road,
Chaoyang District, 100029 Beijing, China. Email: sch9613070 @sina.com
and chshma@vip.sina.com
Disclosure: Changsheng Ma has received honoraria for
presentations from AstraZeneca, Bayer Healthcare, Boehringer Ingelheim,
Bristol Myers Squibb, Johnson and Johnson, and Pfizer. The other authors
have no conflict of interest.