We analyzed risk for bone sarcoma using months of gonadal hormone exposure as a continuous variable. (cebp.aacrjournals.org)
Because the database used in that study provided no information on age at gonadectomy, the study could not evaluate bone sarcoma risk in terms of duration of gonadal hormone exposure. (cebp.aacrjournals.org)
The UC Davis study was undertaken, according to the researchers, because «Given the importance of gonadal hormones in growth and development, this cultural contrast invites an analysis of the multiple organ systems that may be adversely affected by neutering.» (healthypets.mercola.com)