title: PD-1 checkpoint blockade is an emerging treatment for Merkel cell carcinoma.
authors.affiliation: Department of Dermatology, Walter Reed National Military Medical Center, 8901 Wisconsin Ave, Bethesda, MD, 20889, U.S.A.
authors.forename: N M
authors.initials: NM
authors.lastname: Cassler
authors.affiliation: Dermatology Branch, National Cancer Institute, National Institute of Health, 10 Center Drive, 13N202, Bethesda, MD, 20892-1908, U.S.A.
authors.forename: I
authors.identifier: http://orcid.org/0000-0002-0090-9914
authors.initials: I
authors.lastname: Brownell
mesh_terms: D060890:B7-H1 Antigen; D015266:Carcinoma, Merkel Cell; D006801:Humans; D061026:Programmed Cell Death 1 Receptor; D012878:Skin Neoplasms
chemical_list: D060890:B7-H1 Antigen; D061026:Programmed Cell Death 1 Receptor