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Frydenberg M, Maindal HT, Fletcher A, Juul L.Frydenberg M, et al.BMC Public Health. 2022 Mar 4;22(1):439. doi: 10.1186/s12889-022-12864-z.BMC Public Health. 2022.PMID: 35246099Free PMC article.Clinical Trial.
Juul L, Sandbaek A, Foldspang A, Frydenberg M, Borch-Johnsen K, Lauritzen T.Juul L, et al. Among authors: frydenberg m.Scand J Prim Health Care. 2009;27(4):223-31. doi: 10.3109/02813430903279117.Scand J Prim Health Care. 2009.PMID: 19929182Free PMC article.Clinical Trial.
Lange AM, Daley D, Frydenberg M, Rask CU, Sonuga-Barke E, Thomsen PH.Lange AM, et al. Among authors: frydenberg m.JMIR Res Protoc. 2016 Apr 13;5(2):e51. doi: 10.2196/resprot.5319.JMIR Res Protoc. 2016.PMID: 27076496Free PMC article.