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Macroscopic appearance of flaccidly immobilized chicks. Macroscopic appearance of stage 44 chicks, Alcian blue- and Alizarin red-stained for cartilage and bone, respectively. Control chicks were treated with Tyrode's solution and flaccid chicks were treated with pancuronium bromide to induce flaccid paralysis from stage 36. Arrows indicate the position of the stifle joint. Scale bar is 1 cm.
