4Fayers P,Bottomley A.Quality of life research within the EORTC--the EORTC QLQ-C30[J].Eur J Cancer,2002,38(Supp 14):S125-133.
5Von Essen L,Enskar K,Kreuger A,et al.Self-esteem,depression and anxiety among Swedish children and adolescents on and off cancer treatment[J].Acta Paediatr,2000,89(2):229-236.
