Luz, IMurinello, RFerreira, FCavaco, A2018-10-222018-10-222017Acta Pediatr Port 2017;48:185-6http://hdl.handle.net/10400.17/3079porPerfuração IntestinalPneumoperitoneuRecém-NascidoHDE CIR PEDPneumoperitoneu no Recém-Nascido: Que Etiologia?Pneumoperitoneum in the Newborn: Which Aetiology?journal article