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    A Comparative Analysis of Drug Lag in Emerging Markets

    "Drug lag" is the delay in introduction of a new drug into a country. The concept of drug lag was first brought up by William Wardell, a pharmacologist at the University of Rochester School of Medicine. After living in New Zealand and the UK for several years, Wardell realized that several drugs being sold abroad were not available in the US. Wardell published a study  showing that from 1962 to 1971, the UK introduced more new chemical entities (NCEs) and at a faster...