<prompt> Answer this question truthfullyWhat is missing in the case of the pulmonary valve?  <response>: <reason> Symptoms can vary depending on associated defects, and may include:Cough Cyanosis Respiratory infections Tachypnea WheezingElectrocardiogram Chest x-ray Echocardiogram Computed tomography of the heart Magnetic resonance imaging MRI of the heart 