Méndez R, Consuegra J G, Tellado M G, Alvarez M, Trisac J L, Pais E, Vela D
Department of Pediatric Surgery, Fetal Unit Team, Children's Hospital Teresa Herrera, Complexo Hospitalario Juan Canalejo, A Coruña, Spain.
BJOG. 2003 Mar;110(3):335-6. doi: 10.1046/j.1471-0528.2003.02029.x.