Officially, the cells are taken from aborted foetuses with the mothers' consent, but according to Tatyana, there could also be hundreds of babies stolen to order, to feed demand for stem cells from around the world.
Dr Minger told me he found out about the trade in stem cells from aborted Ukrainian foetuses two years ago, when he was invited to meet doctors from a controversial clinic in Barbados.
The clinic's method of treatment involves injecting patients with stem cells taken from babies aborted between seven and ten weeks old.
It is a technique, says Dr Minger, that has no credible research to back it up, and that raises disturbing questions about how the cells have been 'harvested'.
"The problem is, I am not sure how the cells are prepared," he says. "A six-week-old embryo can be just 1cm from head to foot, so it's difficult to dissect tissue from it. They may just homogenise the whole embryo." That's a polite way of saying that the aborted babies could have been liquidised.
The stem cells used in these techniques are bought by IRM from the Ukraine. They are said to be taken from aborted foetuses, with the mothers' consent. But could there be a link with the Ukrainian mothers who believe their babies were deliberately taken from them?
But Dr Ramesh's faith in the treatment was striking. "Foetal stem cells work," he said. "If patients were not getting value for money they would not be coming back to us for second and third infusions."
Then our conversation turned to the main part of my inquiry: how could he be certain the stem cells the clinic was using had indeed come only from aborted foetuses in the Ukraine - a country where there's very little regulation over issues like consent from donors.
Was it possible that the cells had, in fact, been harvested from fullterm babies without any consent from the parents?
Dr Ramesh denied any knowledge of babies being sacrificed for stem cells. He said he had faith in the Institute of Cryobiology in Kharkiv, the source of the stem cells used by the Barbados clinic, but added that "maybe in the future we will go and check it out".