Diagnosis and DD of Allergic Diseases.- History of Allergy.- Allergy Diagnosis.- Nasal and Bronchial Provocation Tests.- Nasal and Bronchial Nonallergic Provocation Tests.- Sputum Tests and Exhaled NO in the Diagnosis and Monitoring of Asthma.- Lung Function and Bronchial Challenge Testing for the Allergist.- Investigative Bronchoprovocation and Bronchoscopy in Patients with Bronchial Asthma.- Exhaled NO in Asthma.- Basophil Activation Tests for Allergy...