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Table 1 Prevalence of MMTV env sequences in various human samples

From: Is MMTV associated with human breast cancer? Maybe, but probably not

  MMTV envDNA PCR results
Sample # tested # positive (% positive)
Retroviral risk group 65 0 (0%)
VBD PBMC 100 9 (9%)
Frozen breast Ca 10 1 (10%)
Frozen fibrocystic breast 9 2 (22%)
FFPE breast Ca 19 3 (16%)
FFPE breast fibrocystic 19 2 (10%)
FFPE breast reduction 9 2 (22%)
Breast Ca cell lines 20 0 (0%)
Malignant lymphocyte cell lines 15 0 (0%)
EBV transformed B lymphocyte cell lines 10 0 (0%)
Non-lymphoid malignant cell lines a 5 0 (0%)
  1. a 1 sarcoma, 3 primary brain and 1 histiocytic lymphoma