Activin A serum levels and aging of the pituitary-gonadal axis: a cross-sectional study in middle-aged and elderly healthy subjects.
Exp Gerontol. 2001 Aug;36(8):1403-12. doi: 10.1016/s0531-5565(01)00117-6.
Exp Gerontol. 2001.
PMID: 11602213