ToPaVe2[expr] converts all the direct Passarino-Veltman
functions (A0, A00, B0,
B1, B00, B11, C0,
D0) to PaVe-functions.
ToPaVe2[A0[m^2]]\text{A}_0\left(m^2\right)
ToPaVe2[A0[m^2]] // FCI // StandardForm
(*PaVe[0, {}, {m^2}]*)ToPaVe2[B11[pp, m^2, M^2, BReduce -> False]]\text{B}_{11}\left(\text{pp},m^2,M^2\right)
ToPaVe2[B11[pp, m^2, M^2, BReduce -> False]] // FCI // StandardForm
(*PaVe[1, 1, {pp}, {m^2, M^2}]*)