<prompt> Recurrent aspiration pneumonia is caused by:DermatomyositispolymyositisRheumatoid ahritisProgressive systemic sclerosisSystemic lupus erythematosus  <response>: Systemic sclerosis is characterized by fibrosis of lower esophageal sphincter Leading to decrease in tone of LES Resultant GERD Leads to Recurrent Aspiration Pneumonia 