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Establishment of osimertinib‐resistant H1975OR cells. (a) The IC50 of osimertinib in H1975S and H1975OR (
) H1975s, and (
) H1975OR; (b) The IC50 of palbociclib in H1975S and H1975OR (
) H1975S, and (
) H975OR; (c, d). CCK8 and colony formation of H1975S (
) 1975, and (
) H1975 and H1975OR; (e) Cell cycle of H1975S (
) Dip G1, (
) Dip G2, and (
) Dip S; (f) Cell cycle of H1975OR (
) Dip G1, (
) Dip G2, and (
) Dip S.
