Belle de Jour author Brooke Magnanti insists she was a call girl 0 c/ \/ x7 C4 a# D* p/ ` & Q4 C9 l0 s( W, I5 ]* l4 P; d6 F1 MBelle de Jour writer Dr Brooke Magnanti goes to court to defend her claims that she worked as prostitute, saying she will "present evidence that I was a sex worker" in unusual libel battle with her former boyfriend Owen Morris* g) X# H4 h' u