TY - JOUR AU - Laaksonen, D E; Niskanen, L; Punnonen, K TI - The metabolic syndrome and smoking in relation to hypogonadism in middle-aged men: a prospective cohort study JO - J Clin Endocrinol Metab IS - 02 VL - 90 PY - 2005 DO - 10.1210/jc.2004-0970 L3 - PubMed-ID: 15536158 SP - 712 EP - 719 N1 - , et al. ER -