Dobson, R. (2007). Breast cancer incidence in US has fallen for first time in 20 years. BMJ Publishing Group Ltd.
Chicago Style aipamenaDobson, Roger. Breast Cancer Incidence in US Has Fallen for First Time in 20 Years. BMJ Publishing Group Ltd, 2007.
MLA aipamenaDobson, Roger. Breast Cancer Incidence in US Has Fallen for First Time in 20 Years. BMJ Publishing Group Ltd, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.