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\bibitem{McElhatton_etal1999} McElhatton, P. R., Bateman, D. N., Evans, C., Pughe, K. R., \& Thomas, S. H. L. (1999). Congenital anomalies after prenatal ecstasy exposure. \textit{The Lancet}, \textit{354}(9188; 23.10.1999), 1441--1442.

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