The influence of age, occupation and diseases suffered on the concentration of fructose in the semen.
D000328:Adult; D000367:Age Factors; D005632:Fructose / Q000032:analysis*; D006801:Humans; D007248:Infertility, Male; D008297:Male; D008875:Middle Aged; D009790:Occupations; D012141:Respiratory Tract Infections / Q000150:complications; D012661:Semen / Q000032:analysis*; D014777:Virus Diseases / Q000150:complications
D005632:Fructose