Ndidates for liver transplantation. J hepatol. 2001;34 (5):651– 657 crossref medline web of science ↵ krowka mj, tajik aj, dickson er, wiesner rh, cortese da. Intrapulmonary vascular dilatations (ipvd) in liver transplant candidates: screening by two-dimensional contrast-enhanced echocardiography. Chest. 1990;97 (5):1165– 1170 crossref medline web of science ↵ schenk p, schoniger-hekele m, fuhrmann v, madl c, silberhumer g, muller c. Prognostic significance of the hepatopulmonary syndrome in patients with cirrhosis. Gastroenterology. 2003;125 (4):1042– 1052 crossref medline web of science ↵ lima bl, franca av, pazin-filho a, et al. Frequency, clinical characteristics, and respiratory parameters of hepatopulmonary syndrome. Mayo clin proc. 2004;79 (1):42– 48 abstract / free full text ↵ sasaki t, hasegawa t, kimura t, okada a, mushiake s, matsushita t. Development of intrapulmonary arteriovenous shunting in postoperative biliary atresia: evaluation by contrast-enhanced echocardiography. J pediatr surg. 2000;35 (11):1647– 1650 crossref medline ↵ barbã© t, losay j, grimon g, et al. Pulmonary arteriovenous shunting in children with liver disease. J pediatr. 1995;126 (4):571– 579 crossref medline web of science ↵ alvarez ae, ribeiro af, hessel g, baracat j, ribeiro jd. Abernethy malformation: one of the etiologies of hepatopulmonary syndrome. Pediatr pulmonol. 2002;34 (5):391– 394 crossref medline web of science ↵ lee j, menkis ah, rosenberg hc. Reversal of pulmonary arteriovenous malformation after diversion of anomalous hepatic drainage. Ann thorac surg. 1998;65 (3):848– 849 abstract / free full text ↵ samyn m, bourgois a, bansal s, et al. generic viagra viagra for sale buy cheap viagra cheap viagra online viagra without a doctor prescription cheap viagra cheap generic viagra viagra online buy cheap viagra viagra for sale Hepatopulmonary syndrome in children: a single centre experience. J pediatr gastroenterol nutr. 2004;39 (suppl 1):s199 santamaria f, sarnelli p, celentano l, et al. Noninvasive investigation of hepatopulmonary syndrome in children and adolescents with chronic cholestasis. Pediatr pulmonol. 2002;33 (5):374– 379 crossref medline teisseyre m, szymczak m, swiatek-rawa e, et al. Scintiscanning in diagnostics of hepatopulmonary syndrome in children. Med sci monit. 2001;7 (suppl 1):255– 261 medline chongsrisawat v, ampai s, chotivitayatarakorn p, sirisopikul t, poovorawan y. Relationship between vasoactive intestinal peptide and intrap. which is best viagra viagra and viagra