and demand and certain, for certain drugs, only a small number of manufacturing plants are making it, if there's a problem with contamination or a problem at the plant, the drug production gets held up and we also know that economics plays into it. and some of the drugs we are he' missing, these are basic drugs, steroids, basic chemotherapy drugs and they're inexpensive. we're not talking about the newest drug, we're talking about our older drugs on the market and less of a profit to be made by making them. >> you're talking about important drugs, too, dealing with one of the most dreaded diseases in the country and what are doctors now doing in the loss or absence of the drugs? >> well, the doctors are rallying together and our colleges are grouping together and trying to get the f.d.a. to make it mandatory that the drug suppliers notify them early if they anticipate a shortage. doctors themselves can recognize the pattern in numbers, the patients with certain cancers and try to anticipate shortages them and