PRISMA 2020 Flow Diagram

flowchart TD
  subgraph ID ["Identification"]
    A1["Records identified from databases<br/>n = "]
    A2["Records identified from registers<br/>n = "]
    A3["Duplicate records removed<br/>n = "]
  end
  subgraph SC ["Screening"]
    B1["Records screened<br/>n = "]
    B2["Records excluded<br/>n = "]
    B3["Reports sought for retrieval<br/>n = "]
    B4["Reports not retrieved<br/>n = "]
    B5["Reports assessed for eligibility<br/>n = "]
    B6["Reports excluded, with reasons<br/>Reason 1: n = <br/>Reason 2: n = "]
  end
  subgraph IN ["Included"]
    C1["Studies included in review<br/>n = "]
    C2["Reports of included studies<br/>n = "]
  end
  A1 --> A3
  A2 --> A3
  A3 --> B1
  B1 --> B2
  B1 --> B3
  B3 --> B4
  B3 --> B5
  B5 --> B6
  B5 --> C1
  C1 --> C2