[1] Mt Sinai Sch Med, New York, NY USA
[2] Univ Texas SW, Dallas, TX USA
[3] Case Western Reserve Univ, Cleveland, OH 44106 USA
[4] Univ Massachusetts, Sch Med, Worcester, MA USA
[5] Ghent Univ Hosp, B-9000 Ghent, Belgium
[6] Newark Beth Israel Med Cntr, Newark, NJ USA
[7] Cleveland Clin, Cleveland, OH 44106 USA
[8] Univ Utah, Sch Med, Salt Lake City, UT USA
[9] Univ Alabama, Birmingham, AL USA