ArmitageP. (1954). Sequential tests in prophylactic and therapeutic trials. Quart. J. Med., 23, 255.
2.
BeecherH. K. (1955). The powerful placebo. J. Amer. med. Ass., 159, 1602.
3.
BerryW. T. C.NashF. A. (1954). Symptoms as a guide to anaemia. Brit. med. J., 1, 918.
4.
BiggsR.MacmillanR. L. (1948). The errors of some haematological methods as they are used in a routine laboratory. J. clin. Path., 1, 269.
5.
HillA. Bradford (1955). Principles of medical statistics.London. Lancet Ltd., p. 233.
6.
CochraneA. L.ChapmanP. J.OldhamP. D. (1951). Observers’ errors in taking medical histories. Lancet, 1, 1007.
7.
ComroeJ. H.Jr.BotelhoS. (1947). The unreliability of cyanosis in the recognition of arterial anoxaemia. Amer. J. med. Sci., 214, 1.
8.
DunlopD. M.InchR. S.PaulJ. (1953). A survey of prescribing in Scotland in 1951. Brit. med. J., 1, 694.
9.
FletcherC. M. (1952). The clinical diagnosis of pulmonary emphysema: An experimental study. Proc. Roy. Soc. Med., 45, 577.
10.
GaddumJ. H. (1954). Clinical pharmacology. Proc. Roy. Soc. Med., 47, 195.
11.
GlaserE. M.WhittowG. C. (1954). Experimental errors in clinical trials. Clin. Sci., 13, 199.
12.
GlaserE. M. (1954). A further note on errors in the use of questionnaires. Clin. Sci., 13, 475.
13.
GoldbergL. (1951). Tolerance to alcohol in moderate and heavy drinkers and its significance to alcohol and traffic. Proceedings of First International Conference on Alcohol and Traffic.Stockholm. Kugelbergs Boktryckeri, p. 88.
14.
JellinekE. M. (1946). Quoted by Gaddum, J. H. (1954).
15.
JenningsD. A.BomfordR. R. (1953). Diseases of the digestive system in Medicine edited by GarlandH. G.PhilipsW.London. W. Macmillan & Co., p. 1908.
16.
KellgrenJ. H. (1956). Radiological signs of rheumatoid arthritis. A study of observer differences in the reading of hand films. Ann. rheumat. Dis., 15, 55.
17.
LeysD. (1956). Value of propantheline bromide in treatment of enuresis. Brit. med. J., 1, 549.
18.
MainlandD. (1953). The risk of fallacious conclusions from autopsy data on the incidence of diseases with applications to heart disease. Amer. Heart J., 45, 644.
19.
MainlandD. (1954). Methods in medical research edited by SteeleJ. Murray. Chicago. The Year Book Publishers Inc., London.
20.
Mayon-WhiteR. M. (1956). A controlled trial of propantheline in bed-wetting. Brit. med. J., 1, 550.
21.
O'BrienJ. R. (1954). Is liver a tonic?Brit. med. J., 2, 136.
22.
REPORT OF STUDY BY ARMY, NAVY AND AIR FORCE MOTION SICKNESS TEAM (1956). Evaluation of drugs for protection against motion sickness aboard transport ships. J. Amer. med. Ass., 160, 755.
23.
SchillingR. S. F.HughesJ. P. W.Dingwall-FordyceI. (1955). Disagreement between observers in an epidemiological study of respiratory disease. Brit. med. J., 1, 65.
24.
StradlingP.JohnstonR. N. (1955). Reducing observer error in a 70 mm. chestradiography service for general practitioners. Lancet1, 1247.
25.
TrueloveS. C.WittsL. J. (1955). Cortisone in ulcerative colitis. Brit. med. J., 2, 1041.
26.
WayneE. J. (1954a). The diagnosis of thyrotoxicosis. Brit. med. J., 1, 411.
27.
WayneE. J. (1954b). Advances in medicine. Practitioner, 173, 341.
28.
WhiteC. (1953). Sampling in medical research. Brit. med. J., 2, 1284.
29.
WolfS.PinskyR. U. (1954). Effects of placebo administration. J. Amer. med. Ass., 155, 339.
30.
WoottonI. D. P.KingE. J. (1953). Normal values for blood constituents. Inter-hospital differences. Lancet, 1, 470.
31.
YerushalmyJ.GarlandL. H.Hark-NessJ. T.HinshawH. C.MillerE. R.ShipmanS. J.ZwerlingH. B. (1951). An evaluation of the role of serial chest roentgenograms in estimating the progress of discase in patients with pulmonary tuberculosis. Amer. Rev. Tuberc., 64, 225.