Hi experts, which of the following is correct: 1) The patient was lost to follow-up (noun). 2) The patient was lost to follow up (verb). I am from medical transcription industry, and this is a sentence we hear dictated by many doctors. We are not permitted to change the structure of the sentence to any other more grammatically perfect form. Basically my question is: Does the "lost to" take a noun/noun phrase or a verb?