Task: Question Answering
Input (English): Context: The Ehlers-Danlos Syndrome (EDS) is a rare connective tissue disorder characterised by fragility of the soft connective tissues and widespread manifestations in skin, ligaments, joints, blood vessels and internal organs. We report a case of a 12-year-old boy, previously diagnosed with kyphoscoliosis-type EDS (type VI), presenting with a left brachial artery pseudo-aneursym with history of multiple spontaneous and post-traumatic arterial ruptures. Surgical management of this patient was performed successfully by primary repair of brachial artery lesion. 
 Question: What tissue is most affected in Ehlers-Danlos syndromes?
Output (English): connective tissue