ScienceJohn Michels (Journalist) 1952 |
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... period . These interruptions , given at different times for each of the three groups , provided for maximum dark periods of 7 , 102 , and 121⁄2 hr . Temperatures in the cages ranged from 75 ° to 100 ° F. After 37 days the birds were ...
... period varied from 2 to 21 months . Breast - fed infants averaged 25.2 per cent . Periods of breast - feeding varied ... period of fertility control was 3 months ; the longest period was 30 months . Of the entire group of 300 couples ...
Page 385
... period , during which not more than 2 tablets had been omitted in any 24 - hour period . The remaining tablets were accounted for by irregular omissions of not more than one 100 - mg tablet from a total of 600 mg in a 24 - hour period ...
... period , during which not more than 2 tablets had been omitted in any 24 - hour period . The remaining tablets were accounted for by irregular omissions of not more than one 100 - mg tablet from a total of 600 mg in a 24 - hour period ...
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