“…A second approach has been to study the post-injury effects of TBI on women's reproductive health. Compared with non-injured women, women with TBI were significantly more likely to have menstrual irregularities or amenorrhoea for up to 5 years post-TBI, suggesting that the injury itself is associated with circulating hormone levels (Colantonio et al, 2010;Ripley et al, 2008). A third approach has been to study possible therapeutic effects of administering female sex hormones, or selective oestrogen receptor modulators (SERMs), for both male and female rodents and humans following TBI (Gibson, Gray, Bath, & Murphy, 2008;Kokiko et al, 2006;Stein, 2001;Stein, Wright, & Kellermann, 2008;Wright, Hoffman, Virmani, & Stein, 2008;Xiao, Wei, Yan, Wang, & Lu, 2008).…”