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Frequency of holoprosencephaly in the International Clearinghouse Birth Defects Surveillance Systems: searching for population variations.
Leoncini E, Baranello G, Orioli IM, Annerén G, Bakker M, Bianchi F, Bower C, Canfield MA, Castilla EE, Cocchi G, Correa A, De Vigan C, Doray B, Feldkamp ML, Gatt M, Irgens LM, Lowry RB, Maraschini A, Mc Donnell R, Morgan M, Mutchinick O, Poetzsch S, Riley M, Ritvanen A, Gnansia ER, Scarano G, Sipek A, Tenconi R, Mastroiacovo P. Leoncini E, et al. Among authors: gnansia er. Birth Defects Res A Clin Mol Teratol. 2008 Aug;82(8):585-91. doi: 10.1002/bdra.20479. Birth Defects Res A Clin Mol Teratol. 2008. PMID: 18566978
Bengt Källén.
Gnansia E. Gnansia E. Birth Defects Res. 2021 Jul 15;113(12):1001-1002. doi: 10.1002/bdr2.1937. Epub 2021 Jun 28. Birth Defects Res. 2021. PMID: 34180152 No abstract available.