title: Author's Response.
authors.affiliation: Gastroenterology, Guy's and St Thomas' Foundation NHS Trust, London, UK.
authors.forename: Ben
authors.initials: B
authors.lastname: Warner
mesh_terms: D018798:Anemia, Iron-Deficiency / Q000188:drug therapy*; D005770:Gastrointestinal Neoplasms / Q000150:complications*; D006801:Humans; D008297:Male; D018329:Nevus, Blue / Q000150:complications*; D020123:Sirolimus / Q000627:therapeutic use*; D012878:Skin Neoplasms / Q000150:complications*
chemical_list: D020123:Sirolimus