Usher syndrome: an effective sequencing approach to establish a genetic and clinical diagnosis. Hear Res 2015;320:18-23.
. Usefulness of wireless capsule endoscopy for detecting inflammatory bowel disease in children presenting with arthropathy. Eur J Pediatr 2011;170(10):1343-7.
. Usefulness of the measurement of azathioprine metabolites in the assessment of non-adherence. J Crohns Colitis 2010;4(5):599-602.
. Use of zidovudine-sparing HAART in pregnant HIV-infected women in Europe: 2000-2009. J Acquir Immune Defic Syndr 2011;57(4):326-33.
. Use of specific antiretroviral regimens among HIV-infected women in Italy at time of conception: 2001-2011. AIDS Patient Care STDS 2012;26(8):439-43.
. Use of placebo in a trial of thalidomide for pediatric Crohn disease--reply. JAMA 2014;311(12):1251-2.
. Use of ketamine continuous infusion for pediatric sedation in septic shock. Pediatr Emerg Care 2010;26(9):689-90.
. On the use of Chinese population as a proxy of Amerindian ancestors in genetic admixture studies with Latin American populations. Eur J Hum Genet 2015;
. Upper gastrointestinal involvement in paediatric onset Crohn's disease: prevalence and clinical implications. J Crohns Colitis 2012;6(1):51-5.
. An Update on the Pathogenesis and Treatment of Chronic Recurrent Multifocal Osteomyelitis in Children. Paediatr Drugs 2017;19(3):165-172.
. An unusual unilateral breast enlargement in a prepubertal girl. Arch Dis Child 2018;103(5):451.
. Unusual splice site mutations disrupt FANCA exon 8 definition. Biochim Biophys Acta 2014;1842(7):1052-8.
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