[1] Plaintiff consulted the 2nd defendant on 21 May 2001 with the history and complaint of pain in the abdomen before menstruation and dysmenorrhoea, inter alia. The 2nd defendant is an Obstetrician and Gynaecologist practising at the Gleneagles Medical Centre ('the hospital'), wholly owned and operated by the 1st defendant. Through an ultra sound scan, plaintiff was diagnosed clinically to have endometriotic cyst in her left and right ovary. She was admitted to the Hospital on 5 June 2001 for surgical procedure called laparoscopic ovarian cystectomy. On 6 June 2001, 2nd defendant performed the laparoscopy on the plaintiff to confirm the presence of the two endometriotic cysts and forthwith to remove them. After the laparo