2 . Schiepers C,Penninckx F,De Vadder N,et al . Contribution of PET in the diagnosisof recurren colorectal cancer:comparisonwith conventional imaging . Eur J Surg Oncol,1995,21:517-522 ..3 . Reinhardt MJ,Ehritt-Braun C,Vogelge2sang D,et al . Metastatic ly ......