Grant R
Division of Community Pediatrics, Department of Pediatrics, Albert Einstein College of Medicine, Children's Hospital at Montefiore Medical Center, 317 Est 64th St., New York, NY 10021, USA.
Int J Pediatr Otorhinolaryngol. 2000 Aug 31;54(2-3):79-80. doi: 10.1016/s0165-5876(00)00364-5.