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BMJ (e), 354:i4353. BMJ Publishing Group BMJ (International edition), 354 The BMJ Repositorio Institucional de la Consejería de Sanidad de la Comunidad de Madrid Consejería de Sanidad de la Comunidad de Madrid Cheong-see, F, Schuit, E, Arroyo-manzano, D, Khalil, A, Barrett, J, Joseph, K S, Asztalos, E, Hack, K, Lewi, L, Lim, A, Liem, S, Norman, J E, Morrison, J, Combs, C A, Garite, T J, Maurel, K, Serra, V, Perales, A, Rode, L, Worda, K, Nassar, A, Aboulghar, M, Rouse, D, Thom, E, Breathnach, F, Nakayama, S, Russo, F M, Robinson, J N, Dodd, J M, Newman, R B, Bhattacharya, S, Tang, S, Mol, B W J, Zamora, J, Thilaganathan, B & Thangaratinam, S 2016, ' Prospective risk of stillbirth and neonatal complications in twin pregnancies: systematic review and meta-analysis ', British Medical Journal (BMJ), pp. i4353 . https://doi.org/10.1136/bmj.i4353