1. Age at menarche: a predictor of diminished ovarian function?
Andrea Weghofer, M.S., M.B.A., M.D., Ph.D., Ann Kim, M.S., David H. Barad, M.D., M.S., Norbert Gleicher, M.D. 
Fertility and Sterility 
Volume 100, Issue 4, Pages (October 2013)
DOI: /j.fertnstert
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Association between age at menarche and diminished ovarian function (DOR) risk in 502 infertile women.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions