1. Neumomediastino espontáneo manifestado por enfisema cervical, neumorraquia y neumoperitoneo: reporte de tres casos;Marín-Méndez;An ORL Mex,2005
2. Neumorraquis epidural;Martin-Serradilla;Rev Neurol,2007
3. An inusual case of pnemorrhachis following resection of lung carcinoma;Ristagno;Chest,2002
4. Epidural Pneumorrhachis Accompanying to Spontaneous Pneumomediastinum in a Boy: A rare association;Atalar;Turkish Respiratory Journal,2007
5. Traumatic pneumorrhachis;Goh;J Trauma,2005