[%
        centres = {
            bristol => {
                logos => {
                    large => 'nbtbanner.jpg',
                    small => 'lcc_logo_small.jpg', # needs NBT 
                },
                lab_name => 'BHODS',
                title => 'NBT-BHODS',
                addr1 => 'Bristol Haemato-Oncology Diagnostic Service',
                addr2 => 'Southmead Hospital, North Bristol NHS Trust',
            },
            uclh => {
                    large => 'uchbanner.jpg',
                    small => 'uclh-top-logo.jpg',
                logos => {
                },
                lab_name => 'SIHMDS',
                title => 'UCLH-SIHMDS',
                addr1 => 'SIHMDS Reception, 2nd Floor, 60 Whitfield St, London W1T 4EU',
                addr2 => 'Specimen Reception & all General Enquiries - 020 34478518',
                addr3 => 'Flow Cytometry - 020 34479603',
            },
            leeds => {
                logos => {
                    large => 'lcc_logo.jpg',
                    small => 'lcc_logo_small.jpg',
                },
                lab_name => 'HMDS',
                title => 'Haematological Malignancy Diagnostic Service',
                addr1 => 'Level 3, Leeds Cancer Centre, Bexley Wing, Beckett '
                    _ 'Street, Leeds, LS9 7TF',
                addr2 => 'Tel: 0113 2067851     Email: hmds.lth@nhs.net'
                    _ '    FAX: 0113 2067883',
            },
        }; # default header for test scripts:
        header = centres.${session.centre} || centres.leeds; # INCLUDE dumper.tt dump = header;
    %]