Write a very short cover letter in British English to East and North Herts NHS Trust for the job below that I found on jobsincare.com 

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                                                    Consultant in Gastroenterology with East and North Herts NHS Trust in Stevenage

                                                     This is a substantive post based at the Lister Hospital in Stevenage and comprises 10 programmed activities (PAs) including an on-call commitment to the emergency endoscopy rota. The successful applicant will work closely with the existing 12 Gastroenterologists and 4 hepatologists to provide a high standard Gastroenterology service to the Trust. This post is based at the Lister Hospital in Stevenage; however, clinics can be at any of three sites, Lister Hospital, the New QEII Hospital in Welwyn Garden City or Hertford County Hospital, Hertford.   It is expected that the applicant will complement an existing department offering gastroenterology and liver services, please see job plan. Across the trust the care of GI and liver inpatients is centralised at the Lister site with consultants involved in a 1 in 12 GI bleeding rota which incorporates a 24/7 bleed service and some routine endoscopy at weekends whilst on-call. The post does not include a commitment to the general medical on-call rota.   About us  In the paragraphs above you have read an overview about the role we would like to offer and general information about main duties of the post holder. Please see attached job description which describes in full details the duties, responsibilities and reporting relationships of the advertising role.   Please note JD is pending Royal College approval