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The Concept of Clinical Controls Statistical Design
The Concept of Chance Control Statistical Evaluation
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acute diseases applied arbitrary mean arithmetic mean behaviour blood pressure calculated cancer Cedilanid Chi-square Chloramphenicol Chpt chronic diseases clinical collectives conclusion concurrent causes control group Cortisone criteria criterion death difference Digitoxin Digoxin diphtheria distribution drug duration efficiency entropy formula gamma globulin given glycosuria grade graph groups of patients homogeneous individual investigation lobar pneumonia mathematical mean values meningitis mortality nephritis Normal law number of complications number of patients obtained outcome penicillin percentage peutic pneumococcal pneumococcal meningitis pneumonia Poliomyelitis post-treatment period pre-treatment period probability procedure quantity radioactive radioactive decay random ratio recovery regard regression coefficient relative frequencies sample scarlet fever serum significant small numbers specific characteristics standard deviation standard error statistical methods suitable sulphonamide survival rates symptomatic symptoms Table therapeutic comparison therapeutic effect therapeutic measure therapeutic trials therapy tion Total treated trend trial and control trial group trial period tuberculosis variable variation