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The English author,Richard Savage,was once living in London in great poverty.In order to  earn  a little money, he had written the story of his life,but not  many  copies of the book had been sold in the shops,and Savage was living from hand to mouth.As a result of his lack of food he became very  ill  ,but after a time,owing to the skill of the doctor who had looked  [MASK]  him,he got well again.After a week or two the doctor sent  an  bill to Savage for his visits,but poor Savage hadn't any money and  couldn't  pay it.The doctor waited for  another  month and sent the bill again.