[theGnuMe]

I mean there is an alternative to expel and that is rehabilitation. I think that happens in a lot of cases. These though are systematic repeated..

The first author 'undergrads' or 'med students' are not assembling the paper no way. For sure the last authors know what is going on.

[rscho]

In medical research no, last authors usually know little about what's going on. There are entire departments where the head puts his/her name on everything that comes out. We're talking tens of papers a year...