The kiddies are squabbling again. This is about part 3 so far in Medscape. This link may not work for all. PR
"Two leading US endocrine societies — the American Thyroid Association (ATA) and the American Association for Clinical Endocrinology (AACE) — are at odds over the specific advice that should be given to doctors regarding the use of triiodothyronine (so-called T3) in patients with hypothyroidism who do not fare well on levothyroxine treatment (T4) alone."