These three links go back as far as 1999. Ignored completely by the Endocrinology in the UK and it appears the world.
healio.com/endocrinology/th...
nejm.org/doi/full/10.1056/N...
This is an extract from the following link and covered a period from 1984 to 1997 and it is a very pertinent point:-
The group of 89 patients, treated elsewhere with T4, but still complaining of symptoms of hypothyroidism, did not really differ from the group of untreated hypothyroid patients as far as symptoms and 24h urine free T3 were concerned
informahealthcare.com/doi/a...
No wonder Dr Lowe was incensed and by those of us who have struggled with ill-health despite being on T4.