Doesn't surprise me that site could have some dead links.
Some of the better sites with pure info are too often written by busy, talented researching individuals who are not as able to maintain them, as websites written and paid by big pharma.
Here is another site which came to mind and gives a reference title/number.
Noted: I did not take time to verify the references here either.
I would say this is off topic but my first point was on topic, which is that, I and others hope to say NO to OV virus injections, which could put the delicate microbiome balance at risk, especially since newest research confirms a healthy and diverse gut microbiome is ESSENTIAL for successful cancer immunotherapy treatment.
Many of us hope one can say no because there are better less invasive options. Obviously I am doing my best to support these better, less invasive options here, with the small molecule, PV-10 - PVCT.
Everybody gets to decide on health prevention and health treatments----
We each get to step out of herd mentality which is cash/pharma led, and be our own best advocate.