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Fransson PA, Hafström A, Karlberg M, Magnusson M, Tjäder A, Johansson R.Fransson PA, et al. Among authors: hafstrom a.IEEE Trans Biomed Eng. 2003 Dec;50(12):1310-9. doi: 10.1109/TBME.2003.819851.IEEE Trans Biomed Eng. 2003.PMID: 14656060Clinical Trial.
Hafström A, Romell A, Ingvar C, Wahlberg P, Greiff L.Hafström A, et al.Acta Otolaryngol. 2016;136(3):312-8. doi: 10.3109/00016489.2015.1113559. Epub 2016 Jan 15.Acta Otolaryngol. 2016.PMID: 26767628
Hafström A, Silfverschiöld M, Persson SS, Kanne M, Ingvar C, Wahlberg P, Romell A, Greiff L.Hafström A, et al.Head Neck. 2017 Nov;39(11):2301-2310. doi: 10.1002/hed.24901. Epub 2017 Aug 21.Head Neck. 2017.PMID: 28833785