The same review analyzed 10 reports that included 4–36 patients with MEN1 who underwent total parathyroidectomy with cervical thymectomy and heterotopic auto-transplantation of a small parathyroid graft, where after a mean follow up of 6–10 years, patients were noted to have persistent hyperparathyroidism in 0–3%, recurrent hyperparathyroidism in 0–55%, and hypoparathyroidism in 0–46% (76). Here, MEN1 is linked to hyperparathyroidism.