Not sure if just some sensitivity training is enough. Lot's of people just view those kinds of things as jokes and a waste of time, learning nothing of it. A slap on the wrist if even that. There need to be some real consequences for that kind of behaviour for things to change. Not gonna say this particular case is grounds for a firing or that it's the first & only option in cases like this, but I'd at least consider it if I was their boss if there wasn't any kind of convincing explanation for their behaviour. At least let them simmer a little, worried about losing their job, that would probably be more effective than sensitivity training. Just because they are doctors shouldn't let their treatment be any different in such cases, when a lot of other people get fired for being vocal racists/sexist/homophobic morons all the time.The other part is to realize that the context is ambiguous as hell.
Surgeons touch their patients. Without the bill cosby line, there's no real reason to interpret it as sexual harassment or rape. But the third doctor might have caught the euphemism and added in the bill cosby line to lighten the mood. This is context that can't be perceived accurately without understanding the specific culture/humour of the team.
Should those doctors get some sensitivity training? Sure. But that's as far as it needs to go. Some people won't be satisfied until they see people been fired. But that's the kind of random whack-a-mole slacktivism that a lot of this shit has degenerated into lately.
And I don't really see how those comments could be interpreted any differently. Sure, doctors touch patients every hour of every day, but I'd imagine if there was some actual medical/surgical/whatever reason to touch a patient, they'd be more specific in a kind of "hey, could you touch this thing (on her)?" instead of a creepy "anyone want to touch her" -> "I can" exchange between doctors followed by warnings of not ending up like Bill Cosby. It's the "anyone want to" and "I can" that make it fairly damning. If they were just treating her, someone HAS to touch her & do whatever surgical operations they have to, it's not some "hey, so anyone who's willing to cut her open, feel free to do so!" situation where they can be all "well, actually, I don't feel like touching any patients today".