| Level 1 |
The citation is not a review article (or case report) |
| The study is on humans and children are included |
| The study administers at least one dose of vitamin D (cholecalciferol, ergocalciferol) to the patient |
| The citation does not represent a conference abstract |
| Level 2 |
At least one study arm (group) includes children |
| At least one dose of vitamin D (ergocalciferol and/or cholecalciferol) was administered |
| Vitamin D was administered at one or more doses determined by the investigators |
| The citation is in English, French, German or Spanish |
| Level 3 |
One or more study arms provide vitamin D supplementation at a dose that r exceeds the IOM age specific Recommended Dietary Allowance (RDA) or Adequate Intake (AI) |
| If the study included adults, the information for pediatrics population is presented separately |
| Vitamin D was not administered mixed with food and in uncontrolled volume |
