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Rölla G, Jonski G, Young A.Rölla G, et al. Among authors: young a.Int Dent J. 2002 Jun;52 Suppl 3:233-5. doi: 10.1002/j.1875-595x.2002.tb00931.x.Int Dent J. 2002.PMID: 12090459Clinical Trial.
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Rykke M, Young A, Devold T, Smistad G, Rölla G.Rykke M, et al. Among authors: young a.Eur J Oral Sci. 1997 Oct;105(5 Pt 2):495-501. doi: 10.1111/j.1600-0722.1997.tb00236.x.Eur J Oral Sci. 1997.PMID: 9395115
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Young A, Jonski G, Rölla G.Young A, et al.Acta Odontol Scand. 2002 Dec;60(6):321-4. doi: 10.1080/000163502762667324.Acta Odontol Scand. 2002.PMID: 12512879