| 1 | A call for volunteers was sent out, but very few people responded. | |
| 2 | In stark contrast, we know very little about the biology of the father-child bond. | |
| 3 | The trouble with all these studies is that they draw firm conclusions from sparse data. | |
| 4 | There are very few kinds of data that we don' t put in our cloud, including our most sensitive material. | |
| 5 | With zinc, there is so little research that it is difficult to determine zinc' s effect on a cold. |
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