Retropharyngeal Abscess
Emedicine.medscape.com Jan, Kahn, J.H. & Shlamovitz, G.Z., 2017
Clinical Reasoning: A 42-year-old Man with Severe Headache, Fever, and Acute Coma
Neurol 82:e9-e13, Han, F.,et, 2014
Polymyalgia Rheumatica
Lancet 381:63-72, Kermani, T. & Washington, K., 2013