Explain what the three doctors decide to do with money they amass from speaking engagements and why.

I promise that this is the last question. I must've asked too much. Sorry but thank you. I just need to know more about the book. Thank you for answering my questions. It's been a huge help for me. I even highlighted and circle the page numbers that you have told me and read them over again. Thank you again. I couldn't thank you enough. If I had any other questions, I would go back here again in most definite. (: