-
September 2011.
Retrieved 30 May 2011.
Bretthauer M, Løberg M,
Wieszczy P,
Kalager M,
Emilsson L,
Garborg K, et al. (October 2022). "Effect of Colonoscopy...
- S75–81. doi:10.1016/S0960-9776(11)70299-5. PMC 3457919. PMID 22015298.
Kalager, M; Zelen, M; Langmark, F; Adami, HO (Sep 2010). "Effect of
screening mammography...