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Declining follicle number with age

Declining follicle number with age
A comparison of the relationship between age and primordial follicle number in Block's study of 44 females aged 7 to 44 years with that of Gougeon's study of females aged 45 to 55 years. Follicle depletion appears to accelerate in the decade preceding menopause.
Data from:
  1. Block E. Quantitative morphological investigations of the follicular system in women; variations at different ages. Acta Anat 1952; 14:108.
  2. Gougeon A. Caractères qualitatifs et quantitatifs de la population folliculaire dans lóvaire humain adulte. Contr Fert Sex 1984; 12:527.
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