Research Paper Volume 11, Issue 17 pp 7236—7241
Mouse mammary tumor virus (MMTV) - like exogenous sequences are associated with sporadic but not hereditary human breast carcinoma
Figure 3. MMTVels negative infiltrating breast carcinoma cells negative for p-14 protein with immunohistochemical analysis (arrows: groups of cancer cells). MMTVels: MMTV env-like sequence.