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Table 2 IGF2 and IGF1 levels at pre and postoperative

From: A case of insulin-like growth factor 2-producing gastrointestinal stromal tumor with severe hypoglycemia

 Pre operationOne week after operation
IGF1 (ng/mL)2139
IGF2 (ng/mL)772492
IGF2/IGF133.612.6
  1. IGF1 Insulin growth factor 1, IGF2 Insulin growth factor 2
  2. Normal Range: IGF1 (84–177a), IGF2 (374–804), IGF2/IGF1 (3.3–0.2)
  3. aNormal range of IGF-1 for 77 years old man. The reference range of IGF1 is differ by age and sex, only up to 77 years old