NSCLC在多种因素作用下发生，带有其目前已知的诱发素包括：吸烟、不良

NSCLC occurs under the action of a variety of factors, with its currently known inducers including: smoking, bad living habits, genetics, etc., and there are no specific clinical manifestations in the early stage, mostly cough and sputum symptoms.

NSCLC occurs under the influence of a variety of factors, with its current known inducing factors include: smoking, bad habits, genetics, etc. , early clinical manifestations of many no specificity, mostly cough, coughing sputum symptoms.

NSCLC occurs under the action of a variety of factors, including smoking, bad living habits, heredity and so on. In the early stage, there are no specific clinical manifestations, and most of the symptoms are cough and expectoration.