| 1 | The study is in the Lancet medical journal. | |
| 2 | The findings are published online in the Journal Lancet. | |
| 3 | The study appeared last week in the journal Lancet Infectious Diseases. | |
| 4 | The study, conducted in Kenya, was published in The Lancet. | |
| 5 | The study, conducted in Kenya, was published in The Lancet. |