Polysomnography Should Be Required Both Before and After Adenotonsillectomy for Childhood Sleep Disordered Breathing Polysomnography Should Be Required Both Before and After Adenotonsillectomy for Childhood Sleep Disordered Breathing Download Phasic or Transient? Comment on the Terminology of the AASM Manual for the Scoring of Sleep and Associated Events Polysomnography Should Not Be Required Both Before and After Adenotonsillectomy for Childhood Sleep Disordered Breathing