| Methods | See Maeda 2004a | |
| Participants | ||
| Interventions | ||
| Outcomes | ||
| Funding Source | ||
| Notes | ||
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| PCS/RCS‐Selection Exposed cohort | Unclear risk | Insufficient description |
| PCS/RCS‐Selection Non Exposed cohort | Unclear risk | Matched infants in good health |
| PCS/RCS‐Comparability | Unclear risk | Matched infants |
| PCS/RCS‐Assessment of Oucome | Unclear risk | Laboratory |
| Summary assessments | High risk | Selection bias may be at play as the enrolment procedure is not described |
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