From: Proposed guidelines for the diagnosis and management of methylmalonic and propionic acidemia
Grade of recommendation | Criteria |
---|---|
A | If level 1 evidence was found (not the case in this study). |
B | If level 2 evidence was found. |
C | If level 3 evidence was found (mainly non-analytical studies such as case reports and case series). |
D | If level 4 evidence was found (mainly expert opinion). |