[1] Baylor Coll Med, Dept Pediat, Sect Pulmonol, Houston, TX 77030 USA
[2] Univ Texas Hlth Sci Ctr Houston, Texas Childrens Hosp, Sch Publ Hlth, Houstonof Biostat & Data Sci, Austin, TX USA
[3] Univ Texas Hlth Sci Ctr Houston, Texas Childrens Hosp, Sch Publ Hlth, Houston Biostat & Data Sci, Austin, TX USA
[4] Univ Texas Hlth Sci Ctr Houston, Michael & Susan Ctr Hlth Living, Sch Publ Hlth, Austin, TX USA
[5] Fatima Jinnah Med Univ, Dept Med, Lahore, Pakistan
[6] Univ Espiritu Santo, Samborondon, Ecuador
[7] Univ Texas Hlth Sci Ctr Houston, Sch Publ Hlth, Dept Biostat & Data Sci, Austin, TX USA
[8] Aga Khan Univ, Clin Enfermedades Respiratorias Hosp Reg Alta Esp, Stadium Rd, Yucatan, Mexico
[9] Univ Amer UDLA Espiritu Santo, Sch Dent, Quito, Ecuador
[10] Aga Khan Univ, Dept Pediat & Child Hlth, Stadium Rd, Karachi, Pakistan