[1] Aetion Inc, Sci, New York, NY USA
[2] Jazz Pharmaceut, Med Affairs, Philadelphia, PA USA
[3] Jazz Pharmaceut, Med Affairs, Palo Alto, CA USA
[4] Wake Forest Univ Sch Med, Biostat & Data Sci, Winston Salem, NC USA
[5] Univ Nebraska Med Ctr, VA Nebraska Western Iowa Hlth Care Syst, Nebraska Med Ctr, Omaha, NE USA