During the second phase of the study, which will last 18 months, all participants will be provided with an Internet-capable computer. All participants will continue seeing their own doctors and following a regular treatment plan prescribed by their doctors. Some will be randomly assigned to also receive the HAT system. Those given the HAT system will take a 1-hour training course on its use and be expected to use it daily for a 10- to 15-minute self-assessment and disease diary entry. The HAT system will also have other assessment, counseling, and education tools that participants can use. Participants will be assessed seven times, with four assessments at the research site and three at the home of each participant. Assessments will be conducted every 3 months, with those at the research site scheduled at baseline and Months 6, 12, and 18. Participants will complete questionnaires and be interviewed at each assessment to measure the severity of their disease, well-being, and attitudes toward the disease. During the assessments at the research site, additional tests in breathing and physical fitness will be performed.