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In a study that continued for a year, scientists detected a gene defect that they believed led to obesity. |
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A study, which lasted nearly a year, convinced scientists that obesity could be caused by a gene defect. |
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After a year-long study, scientists admitted that obesity could be caused by a gene defect. |
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Following a year-long study, scientists observed a gene defect which they were convinced was a cause of obesity. |
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A study, carried out on obesity by scientists for almost the whole year, suggests that a gene defect was the primary cause. |