LTspice noise analysis of a bjt

When analyzing the noise of a simple bjt amplifier, I select "Add traces to plot". In addition to the usual sources of noise, the bjt noise sources are broken down into the following 6 components:

V(q2.fib) V(q2.rb) V(q2.rc) V( V(q2.sib) V(q2.sic)

I understand rb, rc and re. What are the other three contributors?