A Ho Man Tin doctor, who sent two patients to secretly collect evidence on claims that another medical practitioner bad-mouthed her, told the Medical Council of her unbearable frustration yesterday. Eva Kwan Wong Ho-muk, who opened her clinic in Oi Man Estate in 1997, said Au Yeung Kar-wai, who works in a neighbouring practice, told the undercover patients that the way she treated them was inappropriate. The council heard that Dr Au Yeung claimed Dr Kwan was being sued or prosecuted in the High Court in connection with her treatment of a 56-year-old man who died five years ago. Dr Kwan, who sent her complaint to the Medical Council late last year, said she had heard rumours for years in the housing estate that she was responsible for the death of Lau Yuk-wah, who died of a ruptured blood vessel shortly after seeing her. 'If a doctor is said to have caused the death of her patients she has no value,' said Dr Kwan, who appeared as a witness for the first time at the second disciplinary hearing of the case yesterday. 'I studied so hard to be a doctor, hoping to get patients' respect ... but rumours about me had spread to the whole housing estate,' said Dr Kwan, who broke down in front of the council. Dr Kwan said the police had asked to see Lau's medical records but she had not faced any charges relating to his death. A secretly recorded tape was presented on which it was claimed Dr Au Yeung could be heard telling a patient Dr Kwan had been suspended and that she prescribed inappropriate medications. But Dr Au Yeung denied making the claims. The hearing continues.