β-endorphin and met-enkephalin in peritoneal and ovarian follicular fluids of fertile and postmenopausal women

Petraglia, Felice ; Segre, Alberto ; Facchinetti, Fabio ; Campanini, Daniela ; Ruspa, Michela ; Genazzani, Andrea R.

Fertility and sterility, 1985-11, Vol.44 (5), p.615-621 [Periódico revisado por pares]

New York, NY: Elsevier Inc

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