Radioimmunoassay and immunoradiometric assay, R. Edwards and L. Rees; investigation of hypothalamo-pituitary disorders, P.M. Bouloux; thyroid disorders, J.H. Lazarus, et al; Cushing's syndrome - diagnosis and differential diagnosis, P.J. trainer and L.H. Rees; hypothalamic pituitary ovarian axis, D.M. White and S. Franks; disorders of sexual differentiation, M.O. Savage and J.W. Honour; diagnostic tests in calcium disorders, D.C. Anderson and P.C. Richardson; diagnosis of multiple endocrine neoplasia syndromes, R.V. Thakker; endocrine hypertension, P.L. Padfield and C.R.W. Edwards; diagnostic tests in diabetes mellitus and hypoglycaemia, S.A. Amiel and E.A.M. Gale; dyslipidaemias and their investigation, I. Jialal; growth disorders, A.M. Cotterill and M.O. Savage; investigation of testicular disorders, E. Ur and P.M. Bouloux; the diagnosis of adrenal failure, P.J. Trainer and L.H. Rees; disorders of the sympatho-adrenomedullary system, P.M. Bouloux; imaging of the pituitary and other parasellar lesions, D.P.E. Kingsley; investigation of hyponatraemia, P.M. Bouloux.