Retinoid Acid Inhibits IL-1-Induced iNOS, COX-2 and Chemokine Production in Human Chondrocytes. - Hung, Li-Feng; Lai, Jenn-Haung; Lin, Leou-Chyr; Wang, Shyu-Jye; Hou, Tsung-Yun; Chang, Deh-Ming; Liang, Chun-Chin T.; Ho, Ling-Jun (Immunological Investigations, 2008)