英语慰问信怎么写才好

MIKe听说Bob因病住院了，他认为Bob应该查出病因。他希望Bob看到他信时已经好多了，并祝他很快痊愈。以MIKe的名义给BOb写封慰问信
Dear Bob,
I am very sorry to hear that you are in hospital. I think you must be very sad to stay in hospital. However, it is good for you to find out the cause of the disease. Therefore, please be patient and cooperate with doctor. I hope you can feel better when you read my letter. I will go to visit you in person when I am free. Wish you get better soon. Mike