Transplant surgeon Jeyaraj Prema Raj and liver specialist Lui Hock Foong have ruled out other possibilities and are convinced that Madam Chua's sudden liver failure in April this year is drug-induced.

Dr Lui explained: 'The tempo of disease was such that it fits in with severe drug-induced liver failure. The liver biopsy also showed a pattern consistent with drug-induced liver failure.'

Read the full story in Friday's edition of The Straits Times.