C. Tassorelli, G. Sances, M. Allena, N. Ghiotto, L. Bendtsen, J. Olesen, G. Nappi, R. Jensen: The usefulness and applicability of a basic headache diary before first consultation: results of a pilot study conducted in two centres. In: Cephalalgia. 28 (10), Okt 2008, S. 1023–1030. doi:10.1111/j.1468-2982.2008.01639.x. PMID 18624804.
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C. Tassorelli, G. Sances, M. Allena, N. Ghiotto, L. Bendtsen, J. Olesen, G. Nappi, R. Jensen: The usefulness and applicability of a basic headache diary before first consultation: results of a pilot study conducted in two centres. In: Cephalalgia. 28 (10), Okt 2008, S. 1023–1030. doi:10.1111/j.1468-2982.2008.01639.x. PMID 18624804.