[1] Kaiser Permanente San Francisco, San Francisco, CA USA
[2] Univ Toronto, Toronto, ON, Canada
[3] Med Univ Vienna, Vienna, Austria
[4] Univ Geneva, Childrens Univ Geneva, Geneva, Switzerland
[5] Columbia Univ, Med Ctr, New York Presbyterian Hosp, New York, NY USA
[6] Newcastle Univ, Newcastle Upon Tyne, England
[7] Cornell Univ, Weill Cornell Grad Sch Med Sci, New York, NY USA
[8] Allegheny Hlth Network, Pittsburgh, PA USA
[9] Hosp Univ Vall Dhebron, Barcelona, Spain
[10] Med Univ South Carolina, Charleston, SC USA
[11] Sapienza Univ Rome, Rome, Italy
[12] Univ Texas SouthWestern Med Ctr, Dallas, TX USA
[13] Ohio State Univ, Columbus, OH USA
[14] West Virginia Univ, Morgantown, WV USA
[15] Univ Minnesota, Sch Med, Minneapolis, MN USA
[16] Hop Erasme, Brussels, Belgium
[17] Hop Marie Lannelongue, Paris, France
[18] Univ Paris Sud, Paris, France
[19] Tufts Med Ctr, Boston, MA USA
[20] Stanford Univ, Lucile Packard Childrens Hosp, Med Ctr, Palo Alto, CA USA
[21] Mayo Clin, Rochester, MN USA
[22] Royal Brompton & Harefield NHS Trust, London, England
[23] Imperial Coll London, Natl Heart & Lung Inst, London, England
[24] Univ Milan, San Paolo Hosp, Milan, Italy
[25] Hannover Med Sch, Hannover, Germany
[26] Alfred Hosp, Melbourne, Vic, Australia
[27] Monash Univ, Melbourne, Vic, Australia
[28] Yale New Haven Hosp, New Haven, CT USA
[29] Yale Sch Med, New Haven, CT USA
[30] Vanderbilt Univ, Med Ctr, Nashville, TN USA
[31] Natl Cheng Kung Univ, Natl Cheng Kung Univ Hosp, Coll Med, Tainan, Taiwan
[32] Univ Calif San Diego, San Diego, CA USA
[33] Univ Calif San Francisco, San Francisco, CA USA
[34] Univ Virginia, Childrens Hosp Charottsville, Charlottesville, VA USA
[35] Lund Univ, Lund, Sweden
[36] Skane Univ Hosp, Lund, Sweden
[37] Univ Paris Saclay, Le Plessis Robinson, France
[38] INSERM, UMR S 999, Le Plessis Robinson, France
[39] Hop Marie Lannelongue, Hop Bicetre, Assistance Publ Hop Paris, Le Plessis Robinson, France
[40] Inova Fairfax Hosp, Falls Church, VA USA
[41] Univ Alabama Birmingham, Sch Med, Birmingham, AL USA
[42] UPMC, Childrens Hosp Pittsburgh, Pittsburgh, PA USA
[43] Columbia Univ, Med Ctr, Morgan Stanley Childrens Hosp New York, New York, NY USA