Inclusion criteria  • Adults eligible for complete resection of lung, gastric or esophageal cancer  Exclusion criteria  Small cell, carcinoid, or gastrointestinal stromal (GIST) tumours Any wedge resections of lung cancer History of cancer with active treatment in the last 3 years (not including superficial bladder cancer or non-melanoma skin cancer) Patients currently receiving care guided by an ND or who have previously seen an ND in the last 3 months Pregnant or breastfeeding women* Any reason which, in the opinion of the Principal Investigator (or delegate), would prevent the subject from participating in the study Use of an investigational drug or participation in an investigational study within 30 days prior to starting the study