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Actin cytoskeleton and fibronectin matrix in osteoblasts from patients with osteonecrosis of the femoral head (ONFH). Osteoblasts obtained from the intertrochanteric region (IT) of patients with osteoarthritis (OA) or ONFH and from the femoral head (FH) of patients with ONFH were cultured in growth medium for seven days. Confocal maximum projections showing cells stained for actin (red) and fibronectin (green). Bar = 200 μm.
