Media type: E-Article Title: Relevance of constitutive neuronal and endotelial nitric oxide synthase gene polymorphisms in the etiopathogenesis of achalasia Contributor: Zarate, Natalia; Asuncion, Maria; Gonzalez, Garcia; Strunk, Mark; Malagelada, Juan-Ramon; Lanas, Angel; Mearin, Fermin imprint: Elsevier BV, 2003 Published in: Gastroenterology Language: English DOI: 10.1016/s0016-5085(03)81279-9 ISSN: 0016-5085 Keywords: Gastroenterology ; Hepatology Origination: Footnote: Access State: Open Access