1 | Internet Solutions for Kids, Inc., 555 N. El Camino Real #A347, San Clemente,
CA 92672-6745, USA |
2 | Department of Public Health, Hacettepe University
School of Medicine, Ankara, 06100, Turkey |
3 | Department of Family Medicine,
Michigan State University, B101 Clinical Center, Michigan State University,
East Lansing, MI 48824, USA |
4 | Department of Chest Diseases, Hacettepe
University School of Medicine, Ankara, 06100, Turkey |