National Jewish Health is the Leading Respiratory Hospital and Offers Treatment and Research for Pulmonary, Cardiac, Immune and Related Conditions; Providing Clinical and Diagnostic Laboratory Testing Services for Private and Government Beryllium Using Facilities Across the U.S., Including Belpt (Beryllium Lymphocyte Profileration Test) Testing, Clinical Evaluation, Exposure Sampling, Medical Surveillance Program Design / Review, Risk Assessment, On-Site and Web-Based Beryllium Education, Respirator Fit ...