1 Basque Country Pharmacovigilance Unit, Galdakao-Usansolo Hospital, Barrio Labeaga 46A, 48960, Galdakao, Bizkaia, Spain. farmacovigilancia@osakidetza.eus.
2 Department of Internal Medicine, San Eloy Hospital, Barakaldo, Spain.
3 Basque Country Pharmacovigilance Unit, Galdakao-Usansolo Hospital, Barrio Labeaga 46A, 48960, Galdakao, Bizkaia, Spain.
4 Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country, Leioa, Spain.