Primary insulin-like growth factor-1 (IGF-1) deficiency Inclusion term(s):Acid-labile subunit gene (IGFALS) defectGrowth hormone gene 1 (GH1) defect with growth hormone neutralizing antibodiesGrowth hormone insensitivity syndrome (GHIS)Insulin-like growth factor 1 gene (IGF1) defectLaron type short statureSevere primary insulin-like growth factor-1 deficiency (SPIGFD)Signal transducer and activator of transcription 5B gene (STAT5b) defect