Handwritten medical notes style image about lung cancer on lined notebook paper. Include handwritten text covering: Types (NSCLC - adenocarcinoma, squamous cell, large cell; SCLC), Risk Factors (smoking, asbestos, radon, air pollution), Symptoms (persistent cough, hemoptysis, dyspnea, weight loss, chest pain), Diagnosis (CT scan, bronchoscopy, biopsy, PET scan), Treatment (surgery, chemotherapy, radiation, immunotherapy, targeted therapy). Include small hand-drawn diagrams of lungs, arrows, and underlines. Use blue and black ink on white paper. Realistic handwriting style as if written by a medical student.