In 1946, researchers introduced hydroxychloroquine (HCQ) as a chloroquine (CQ) derivative by incorporating a hydroxyl group. The purpose was to decrease the ocular toxicity often associated with CQ.
IN the course of work on osmotic regulation of estuarine invertebrates, it was found that cryoscopic and vapour-pressure methods do not yield reproducible results in a tropical place such as Madras.
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