. 1999 Aug 1;20(8):1615–1620. doi: 10.1093/carcin/20.8.1615

Table I.

Experimental design

Group	n	Initiation	Promotion
^aVehicle controls received 1 ml of sesame oil.
^bRats not exposed to magnetic fields have ambient field intensities of <1 mG.
^cFive milligrams DMBA given four times at weekly intervals.
^dTwo milligrams DMBA given four times at weekly intervals.
First 13 week study
Vehicle^a	100	None	None^b
DMBA	100	20 mg^c DMBA	None
1 G, 50 Hz	100	20 mg^c DMBA	1 G, 50 Hz
5 G, 50 Hz	100	20 mg^c DMBA	5 G, 50 Hz
1 G, 60 Hz	100	20 mg^c DMBA	1 G, 60 Hz
Second 13 week study
DMBA	100	8 mg^d DMBA	None
1 G, 50 Hz	100	8 mg^d DMBA	1 G, 50 Hz
5 G, 50 Hz	100	8 mg^d DMBA	5 G, 50 Hz