Transparency
Declaration of funding
This letter was not funded.
Declaration of financial/other relationships
This letter was written independently. The authors did not receive financial or professional help with the preparation of the manuscript. D.P.M. has disclosed that he has given talks, attended conferences and participated in studies sponsored by Merck, Sharp & Dohme and Genzyme. A.P.A. has disclosed that he has no significant relationships with or financial interests in any commercial companies related to this study or article. A.P.A. is supported by a grant from the Hellenic Atherosclerosis Society.