How To Write A Referral Thank You Note . Hft industries has a wonderful reputation as an industry leader, and i really appreciate your confidence in me. Here are the steps to writing a thank you note for a patient referral. FREE 5+ Sample ThankYou Letters to Doctor in PDF MS Word from www.sampletemplates.com Business referral thank you note wording. This is the core of. Include your salutation and greet the recipient using their last name.