Author's reply to Clifford and colleagues.
Chest and Allergy Clinic, St Mary's Hospital, Imperial College NHS Trust, London W2 1NY, UK onn.kon@imperial.nhs.uk.
Onn M
OM
Kon
D001688:Biological Products / Q000627:therapeutic use*; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D055985:Latent Tuberculosis / Q000175:diagnosis*
D001688:Biological Products; D007166:Immunosuppressive Agents