How To Write A Thank You Note To Medical Staff . It was their attentiveness, their powers of observation which caught his pneumonia in the nick of time. Simpson, it is with great pleasure that i take this opportunity to express my undying gratitude to you and your good nursing staff. Thank You Letter For Patient Referral Database Letter Template Collection from simpleartifact.com Thanking you for the medical assistant externship. You have been my therapist, supporter, friend, well wisher and angel in disguise. Be specific in your thanks.