Construction and validation of a predictive model of invasive adenocarcinoma in pure ground-glass nodules less than 2 cm in diameter.

"Declarations Ethics approval and consent to participateThis study was approved by the Ethics Committee of Qilu Hospital, Shandong University (registration number: KYLL-202008-023-1), and all patients signed an informed consent form for the use of their clinical information prior to the procedure. All methods were performed in accordance with the Declaration of Helsinki. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This work was funded by National Key Research and Development Program (2021YFC2500904, and 2021YFC2500905) and Natural Science Foundation of Shandong Province (ZR2021LSW006)."

"This study was approved by the Ethics Committee of Qilu Hospital, Shandong University (registration number: KYLL-202008-023-1), and all the patients read and signed the informed consent form prior to this study, approving the use of their clinical information. Declarations: Ethics approval and consent to participateThis study was approved by the Ethics Committee of Qilu Hospital, Shandong University (registration number: KYLL-202008-023-1), and all patients signed an informed consent form for the use of their clinical information prior to the procedure. All methods were performed in accordance with the Declaration of Helsinki.: Consent for publicationNot applicable.: Competing interestsThe authors declare no competing interests. Ethics approval and consent to participate: This study was approved by the Ethics Committee of Qilu Hospital, Shandong University (registration number: KYLL-202008-023-1), and all patients signed an informed consent form for the use of their clinical information prior to the procedure. All methods were performed in accordance with the Declaration of Helsinki."