The crossing of the curves:  tuberculosis and lung cancer.
D006801:Humans; D008168:Lung; D008175:Lung Neoplasms / Q000706:statistics & numerical data*; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000706:statistics & numerical data*
LUNG NEOPLASMS/statistics; TUBERCULOSIS, PULMONARY/statistics