tesen 52Testing of antibodies to Ro52 or SSA-52 (anti-Ro52 or anti-SSA-52) in patients at-risk for autoimmune connective tissue disease with or without lung involvement. 0.4Testing of antibodies to Ro52 or SSA-52 (anti-Ro52 or anti-SSA-52) in patients at-risk for autoimmune connective tissue disease with or without lung involvement