From: Cancer odor in the blood of ovarian cancer patients: a retrospective study of detection by dogs during treatment, 3 and 6 months afterward
Series I
Series II (3 m)
Series II (6 m)
Ref.
Cancer
Control
Lotti
Yes
42
41
2
10
6
5
No
0
1
208
4
48
45
Hanna
8
3
210
47