Two controlled trials of supplementary feeding of British school children in the 1920s

Lignende værker

• A controlled trial using a factorial design reported in 1946
  af: Pollock, Jon I
  Udgivet: (2018)
• Controlled trials testing two or more treatments simultaneously
  af: Doll, Richard
  Udgivet: (2005)
• The 1944 patulin trial of the British Medical Research Council
  af: Clarke, Mike
  Udgivet: (2006)
• ‘An innocent deception’: placebo controls in the St Petersburg homeopathy trial, 1829-1830
  af: Dean, M E
  Udgivet: (2006)
• Why the MRC therapeutic trials committee did not introduce controlled clinical trials
  af: Toth, Ben
  Udgivet: (2015)