Mark,
I understand the pram now, but I'm not sure this is something you can convey in a cartoon. All you'll be expressing is the approximate age of the lady pushing the baby stroller. Unless you want an inside joke. If you're working with a more advanced artist, however, you might be able to get them to draw a child who is staring off in the distance, but I'm still not sure that can be conveyed in these two frames of a cartoon.
The biomedical research could be in a wastebasket at the gov't agency, or one of the patients could give it to the doctor who could throw it in the wastebasket because it was "experimental" since it didn't match the gov't-approved psychobabble research. (I seriously had a doc write in my chart notes that I brought him experimental research, lol). Or the research he consults could be in three parts: two side-by-side that say psychobabble and biomedical, and one above that says psychobabble summary/conclusion (if there's fine print it could say the biomedical findings are inconsistent and therefore not real or experimental, since they can't be replicated in the psychobabble research).
You might consider labeling the "Drugs" with "SSRI" or "Elavil" something like that which makes it more clear that the Dr. is NOT treating the patients as people with a non-depression disease or even treating them as bona fide sick people. Or perhaps better yet, label it "placebo".
You'd also have to somehow explain the background of psychobabble, that these are studies using a totally wonked inclusion, no proper controls, and manipulated conclusions. Maybe a health reporter who reads the research, exclaims over it, and writes an article but the Spin Media Rep won't publish it.