A small virus-like particle observed in human breast cancer by means of electron microscopy.
D000328:Adult; D000368:Aged; D001706:Biopsy; D001943:Breast Neoplasms / Q000382:microbiology*; D002499:Centrifugation, Density Gradient; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D008875:Middle Aged; D008895:Milk, Human / Q000382:microbiology*; D014780:Viruses / Q000302:isolation & purification*