Mario J. Madruga, MD

<p>An 80-year-old woman presented with difficulty in swallowing, which had gradually worsened over 4 weeks. She complained that food was getting stuck and that she frequently had to sit upright to be...

<p>An 80-year-old woman presented with difficulty in swallowing, which had gradually worsened over 4 weeks. She complained that food was getting stuck and that she frequently had to sit upright to be...