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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Best Pract Res Clin Endocrinol Metab. 2011 Apr;25(2):303–319. doi: 10.1016/j.beem.2010.11.004

Figure 1.

Figure 1

Cross-sectional and 8-year longitudinal trends of testosterone, other androgens and metabolites, and related hormones in middle-aged men. Abbreviations: AAG, androstanediol glucuronide; DHEA, dehydroepiandrosterone; DHEAS, DHEA sulfate; DHT, dihydrotestosterone; FSH, follicle-stimulating hormone; LH, Luteinizing hormone; T, testosterone. Source: MMAS, Feldman et al, J Clin Endocrinol Metab 2002; 87(2):589–598. 55 Copyright 2002, The Endocrine Society. Used with permission.