Additional Study Information: The purpose of this study is to identify genetic causes of lung diseases and to develop a research repository so that we can better understand, prevent, and treat these conditions. You have been asked to join this study as a healthy control. Even though you do not have lung disease, your sample is valuable to us because you are related to someone with lung disease or because you have shared a similar environment as someone with lung disease. The Clinical Research Coordinator will be able to answer your questions about participating in this study.