Patient no 3: All of my friends are retired, like me, and we usually come together in a coffee house. I used to enjoy chatting, drinking tea, and smoking together with them. After I caught this disease, I kept going there for some time. However, after a while, I could not stay in there (the coffee house) for there were lots of people smoking. My friends are still gathering in the coffee house. They used to come to visit me often in the beginning, but they are not coming any more. I was so upset about this at the beginning, but then I got used to the loneliness.