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Merki-Feld, Gabriele S; Sandor, Peter S; Nappi, Rossella E; Pohl, Heiko; Schankin, Christoph (2022). Clinical features of migraine with onset prior to or during start of combined hormonal contraception: a prospective cohort study. Acta neurologica Belgica, 122(2), pp. 401-409. Springer 10.1007/s13760-021-01677-3
