Association between vitamin D status and circulating myokines (irisin, myostatin, and myonectin) in children: A cross-sectional study. - Buyukinan, Muammer; Kurku, Huseyin; Bagci, Zafer; Gederet, Yavuz Turgut; Yilmaz, Ahmet Fatih (PLoS ONE, 2026)