Number of studies reporting the age and weight of the animals.
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†43% (117/271) of the studies reported the age of the animals used in the main experiment; 46% (124/271) of studies reported the weight of the animals used in the main experiment; 24% (66/271) of the papers reported neither the weight nor the age of the animals used, whilst 13% (36/271) reported both weight and age.
创建时间：
2009-11-30
