Medicine General d21e2dce Woman of 30-years with Raynaud's phenomenon, polyahritis, dysphagia of 5-years and mild Sclerodactyl, blood showing Anti-centromere antibody positive, the likely cause is A CREST B Mixed connective tissue disorder C SLE D Rheumatoid ahritis High-Yield Explanation Ans. is 'a' i.e., CREST