Dr Lee Wei Ling had one condition when she agreed to this interview: no photographs.
She did not want people to recognise her.
On the 80th birthday of her father - the late former Prime Minister Lee Kuan Yew - in 2003, her photo appeared in the press.
Not long after, a stranger accosted the medical professor in a lift at KK Women's and Children's Hospital and asked her: "Are you Dr Lee? You see patients dressed like that?"
The 60-year-old former director of the National Neuroscience Institute is sitting in her office at Tan Tock Seng Hospital, dressed in a well-worn grey T-shirt.