Innovation, redefined. The smartest microinverter on the market today â and tomorrow. Remarkable innovation keeps APsystems microinverters ahead of the competition, and puts more power and efficiency into your solar array. APsystems offers advanced solar technology where the world needs it most: everywhere.
For adults, the most common causes of chronic cough are asthma, gastroesophageal reflux disease (GERD), and upper airway cough syndrome (related to postnasal drip), according to background information in Marchant's study.
The following are common causes of chronic coughing. 1  Cigarette smoking is the most common cause of chronic cough. 2  Asthma is a disease of the airways, resulting in difficulty breathing or wheezing often characterized by abnormal breathing tests.3  Some asthma sufferers have chronic cough as their only symptom.he following are common causes of chronic coughing. 1  Cigarette smoking is the most common cause of chronic cough. 2  Asthma is a disease of the airways, resulting in difficulty breathing or wheezing often characterized by abnormal breathing tests.