Serum levels of insulin-like growth factor 1 in 152 patients with growth hormone deficiency, aged 19–82 years, in relation to those in healthy subjects. - Hilding,A.; Hall,K.; Wivall-Helleryd,IL.; Sääf,M.; Melin,AL.; Thorén,M. (J Clin Endocrinol Metab, 1999)