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2. A Centralized Drug and Poison Information Center;Ponampalam;SGH Proc.,2005
3. Determining the extent of adverse drug reactions and poisonings encountered by physicians in Singapore;Ponampalam;SGH Proc.,2002
4. The need for drug and poison information – the Singapore physicians’ perspective;Ponampalam;Singapore Med. J.,2003
5. Cost Benefits of the Drug and Poison Information Center (DPIC) in preventing unnecessary hospitalization: the Singapore experience;Ponampalam;Hong Kong J. Emerg. Med.,2010