"I am writing to thank you for your extreme consideration and professionalism during my recent appointments with you. It’s such a relief to know that things are as they should be after weeks of anxiety."
"I thank you with all my heart for the surgery you carried out on me, and through your expertise in your profession, you have given me a new lease of life."
"I wish to appreciate the successful operation you carried on my daughter, also thank you for the various pieces of advice you gave throughout the period. Please extend my appreciation to all members of your Team who were involved in the operation."