Abdominal pain as the first manifestation of a systemic disease

Guilherme Coutinho Martins Mendes Simões

Correspondence

CORRESPONDING AUTHOR CONTACT INFORMATION: Guilherme Coutinho Martins Mendes Simões astroenterology Department - Centro Hospitalar e Universitário Lisboa Central Alameda Santo António dos Capuchos, 1169-050 Lisboa, Portugal. Tel.: +351 916454990 ;