authors Chaisai, Chayutthaphong Thavorn, Kednapa Wattanasirichaigoon, Somkiat Rungruanghiranya, Suthat Thongphiew, Araya Dilokthornsakul, Piyameth Shaun Lee, PhD Chaiyakunapruk, Nathorn
has subject area Cardiovascular Diseases Humans Prospective Studies Pulmonary Disease, Chronic Obstructive Smoking Cessation Thailand