[1] Univ Montreal, Chicoutimi, PQ, Canada
[2] Regeneron Pharmaceut, Tarrytown, NY USA
[3] Univ Texas Southwestern Med Ctr Dallas, Dallas, TX 75390 USA
[4] Univ Penn, Perelman Sch Med, Philadelphia, PA 19104 USA
[5] Cedars Sinai Heart Inst, Los Angeles, CA USA