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Growth factor receptor-bound protein 2 (GRB2), an adaptor protein, binds to the receptor and recruits Son of Sevenless (SOS), a guanine nucleotide exchange factor (GEF)

Third , the combination lacks robust safety data from controlled trials, meaning potential synergistic effects or unexpected interactions remain inadequately characterized

Sirius red staining performed under polarized light showed significant type I collagen arranged in a concentric lamellar pattern in the AF and type II collagen in the NP (unstained black region) in the sham IVD group (Fig

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