Slide with mounted tissue specimen ready for examination under a microscope. Verso: WHO/9217. England-Research-Drugs. Control in the laboratory. The tragedy of thalidomide, the birth of deformed babies to thousands of women who have taken this tranquillizer, has inevitably shaken confidence in present measures to control new drugs and let to demand that they be tightened up to prevent anything similar occuring in the future. Toxicity tests on animals are an essential part of the control of new drugs. This series of photographs shows the preperation of part of an organ for examination under the mircoscope. In a large research laboratory in the United-Kingdom 30,000 microscopic prepartions are examined in a year. 7) Stained prepartion ready for microscopic examination.
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World Health Organization; Source: Record; Research date: 20151221