Morphological evidence of decreased non-fibrillary macromolecules content in extra-cellular matrix of osteoarthritic cartilage - Vellutini, Waldiane Cossermelli; Sesso, Antônio; Pinto, N M P; Rodrigues, Consuelo Junqueira; Cossermelli, Wilson (Congresso Ilar de Reumatologia, 1989)