On the other hand, discontinuation of antimetabolites such as mycophenolic acid or azathioprine, and mammalian target of rapamycin (mTOR) inhibitors and maintained on a lower therapeutic range of calcineurin inhibitors (CNIs); 2 to 4 ng/mL for tacrolimus and 35 to 65 ng/mL for cyclosporin; and low‐dose steroid is recommended for symptomatic patients without pneumonia. This evidence concerns the gene MTOR and pneumonia.