hat
^ Kelsey JL, Bachrach LK, Procter-Grey E et al (2007). "Faktè risk pou ka zo kase estrès nan mitan jèn fi kourè kwa-peyi". Med Sci Espò Exerc 39 (9): 1457-63. Doi:10.1249/mss.0b013e318074e54b. PMID 17805074. http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?an=00005768-200709000-00003.
eng
^ Kelsey JL, Bachrach LK, Procter-Gray E et al (2007). "Risk factors for stress fracture among young female cross-country runners". Med Sci Sports Exerc 39 (9): 1457–63. doi:10.1249/mss.0b013e318074e54b. PMID 17805074. http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?an=00005768-200709000-00003.