<div class="bt_bb_wrapper"><p>Chronic obstructive pulmonary disease or COPD is a condition that makes breathing difficult. COPD develops gradually over many years and </p></div>… <a href="https://chestmed.com.sg/2021/02/28/what-are-the-common-symptoms-of-chronic-obstructive-pulmonary-disease/" class="read-more" target="_blank">Read the rest </a>