The mighty protein: insulin like growth factor type 1 The Physiological Society Frontiers Dual Characters of GH IGF1 Signaling Pathways in Radiotherapy and Post radiotherapy Repair of Cancers IGF 1 LR3 The Muscle Building Peptide Everyone's Talking About IGF 1 LR3 is one of the most powerful performance peptides used for muscle growth, recovery, and fat loss. It's a modified version The GH IGF 1 axis in ageing and longevity Nature Reviews Endocrinology 40 YEARS OF IGF1: Insulin like growth factors: actions on the skeleton in: Journal of Molecular Endocrinology Volume 61 Issue 1 (2018) Pediatric Implications of Normal Insulin GH IGF Axis Physiology Endotext NCBI Bookshelf