International Classification of Headache Disorders (ICHD-3)
Bulgarian language translation
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International Classification of Headache DisordersAbstract
The 3rd edition of the International Classification of Headache Disorders (ICHD-3) may be reproduced freely for scientific, educational or clinical uses by institutions, societies or individuals. Otherwise, copyright belongs exclusively to the International Headache Society. Reproduction of any part or parts in any manner for commercial uses requires the Society’s permission, which will be granted on payment of a fee. Please contact the publisher.
References
Headache Classification Committee of the International Headache Society (IHS). The International Classification of Headache Disorders, 3rd edition. https://doi.org/10.1177/0333102417738202
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Copyright (c) 2019 Maria Stratieva; I. Milanov, V. Grozeva, S. Ivanova

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