Simulating SOI with Spectre

[AZ]

Hi,

I am using Spectre to do transient simulation of a circuit consisting of SOI
devices and want to plot variations in body voltage of the transistors, BUT
the body nodes do not seem to be accessible anywhere in the circuit deck.
Can someone give me any helpful hint? How can I plot/view Vb?

I am using Berkeley's SOI model BSIMSOI for simulation.

Thanks,
Zia