APA (7th ed.) Citation

Shanmugam, G. Letter to the editor, “Depth-dependent PD-L1 sampling of head and neck squamous cell carcinoma (HNSCC) – Implications for PD-1/PD-L1 checkpoint inhibitor immunotherapy.”. Elsevier.

Chicago Style (17th ed.) Citation

Shanmugam, Geetha. Letter to the Editor, “Depth-dependent PD-L1 Sampling of Head and Neck Squamous Cell Carcinoma (HNSCC) – Implications for PD-1/PD-L1 Checkpoint Inhibitor Immunotherapy.”. Elsevier.

MLA (9th ed.) Citation

Shanmugam, Geetha. Letter to the Editor, “Depth-dependent PD-L1 Sampling of Head and Neck Squamous Cell Carcinoma (HNSCC) – Implications for PD-1/PD-L1 Checkpoint Inhibitor Immunotherapy.”. Elsevier.

Warning: These citations may not always be 100% accurate.