1 The medicine that Walter Lewis took for his rheumatoid arthritis(类风湿性关节炎)caused him to wake up in the middle of the night with a dry mouth.Lewis awoke at 2:30 am needing water.2 He was walking back upstairs from the kitchen when he heard his dog,Rock."It made enough noise for me to go to him.By the time I made it to the bottom of the stairs,he was running up,but he never came up the stairs.I thought that was his way of telling me something,"Lewis said.
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