Retropharyngeal Abscess
Emedicine.medscape.com Jan, Kahn, J.H. & Shlamovitz, G.Z., 2017
Primary Craniocervical Dystonia Presenting as a Respiratory Emergency
Neurol 68:388-389, Papapetropoulos,S.,et al, 2007
Respiratory Management in Acute Neurologic Illness
Neurol 50:11-20, Wijdicks,E.F.M.&Borel,C.O., 1998
Acute Upper Airway Obstruction Due to Supraglottic Dystonia Induced by a Neuroleptic
BMJ 297:964-965, Newton-John,H., 1988