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Comparison of the short-term results of single-dose intra-articular peptide with hyaluronic acid and platelet-rich plasma injections in knee osteoarthritis: a randomized study. Clinical rheumatology 39.10 (2020): 3057-3064

Unfortunately, efforts towards that end are hampered by the diversity of presumed organ involvement and related clinical manifestations, limited sample sizes of studies from which the corresponding primary data have been derived and small effect sizes of ascertained associations

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