diff --git a/data/README.md b/data/README.md
index b9c1967baac5db829cf3d487f6be51fdf2f3411c..f3ab5ac99c13a2f5f990b37e267a310f797628a1 100644
--- a/data/README.md
+++ b/data/README.md
@@ -3,23 +3,21 @@ This directory contains the data referring to the nodes and links used to genera
 
 ## Nodes
 
-| DATA | DESCRIPTION | IDENTIFIER | TOTAL | SOURCE |
-|------------------|--------------------------- ----------------------------------|-------------- -------------------------------------------|------- -|-----------|
-| Diseases (dis.tsv) | Data regarding diseases, including your name and identifier | Unified Medical Language System (UMLS) Concept Unique Identifiers (CUI) | 30,731 | UMLS |
-| Genes (gen.tsv) | Data relating to genes, including their symbol and identifier | National Center of Biotechnology Information (NCBI) Identifiers | 20,610 | NCBI |
-| Proteins (prot.tsv) | Data relating to proteins, including their identifier | Accession number in UniProt | 18,521 | UniProt |
-| Drugs (dru.tsv) | Data relating to drugs, including your name and identifier | ChEMBL Identifier | 3,944 | ChEMBL |
+| DATA                    | DESCRIPTION                                                     | IDENTIFIER                                      | TOTAL  | SOURCE  |
+|-------------------------|-----------------------------------------------------------------|-------------------------------------------------|--------|---------|
+| Diseases (dis.tsv)     | Data regarding diseases, including their name and identifier     | Unified Medical Language System (UMLS) Concept Unique Identifiers (CUI) | 30,731 | UMLS    |
+| Genes (gen.tsv)        | Data relating to genes, including their symbol and identifier   | National Center of Biotechnology Information (NCBI) Identifiers | 20,610 | NCBI    |
+| Proteins (prot.tsv)    | Data relating to proteins, including their identifier           | Accession number in UniProt                   | 18,521 | UniProt |
+| Drugs (dru.tsv)        | Data relating to drugs, including their name and identifier     | ChEMBL Identifier                             | 3,944  | ChEMBL  |
 
 
 ## Links
 
-| DATA | DESCRIPTION | IDENTIFIER | TOTAL | SOURCE |
-|-----------------------|------------------------ -------------------------------------------------- ---------------|---------------------------------- --------------------|---------|------------------- -------------------------------------------------- ----|
-| Disease – Drug (dis_dru_the.tsv) | Associations between diseases and drugs used for their treatment | UMLS CUI – ChEMBL Identifier | 52,179 | Comparative Toxicogenomics Database (CTD) |
-| Disease – Gene (dis_gen.tsv) | Associations between diseases and genes whose mutation triggers the disease | UMLS CUI – NCBI Identifier | 358,209 | DisGeNET |
-| Disease – Protein (dis_prot.tsv) | Associations between diseases and proteins produced from their pathological genes | UMLS CUI – Accession number in UniProt | 361,325 | DisGeNET |
-| Gene – Protein (gen_pro.tsv) | Associations between genes and proteins produced from the gene | NCBI Identifier – Accession Number in UniProt | 15,770 | DisGeNET |
-| Protein – Protein (pro_pro.tsv) | Associations between proteins that physically interact with each other | Accession number in UniProt – Accession number in UniProt | 439,863 | DisGeNET |
-| Drug – Protein (dru_pro.tsv) | Associations between drugs and the target proteins they affect | ChEMBL identifier – Accession number in UniProt | 5,946 | ChEMBL and DrugBank |
-| Disease – Symptom (dse_sym.tsv) | Associations between diseases and the symptoms they develop | UMLS CUI – UMLS Concept Unique Identifiers | 318,550 | ChEMBL and (Side Effect Resource) SIDER |
-
+| DATA                           | DESCRIPTION                                                                        | IDENTIFIER                                                     | TOTAL  | SOURCE                                             |
+|--------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------|--------|----------------------------------------------------|
+| Disease – Drug (dis_dru_the.tsv)  | Associations between diseases and drugs used for their treatment                 | UMLS CUI – ChEMBL Identifier                                  | 52,179 | Comparative Toxicogenomics Database (CTD)           |
+| Disease – Gene (dis_gen.tsv)      | Associations between diseases and genes whose mutation triggers the disease      | UMLS CUI – NCBI Identifier                                    | 358,209| DisGeNET                                           |
+| Disease – Protein (dis_prot.tsv)  | Associations between diseases and proteins produced from their pathological genes | UMLS CUI – Accession number in UniProt                        | 361,325| DisGeNET                                           |
+| Gene – Protein (gen_pro.tsv)      | Associations between genes and proteins produced from the gene                     | NCBI Identifier – Accession Number in UniProt                | 15,770 | DisGeNET                                           |
+| Protein – Protein (pro_pro.tsv)   | Associations between proteins that physically interact with each other              | Accession number in UniProt – Accession number in UniProt    | 439,863| DisGeNET                                           |
+| Drug – Protein (dru_pro.tsv)      | Associations between drugs and the target proteins they affect                    | ChEMBL identifier – Accession number in UniProt              | 5,946  | ChEMBL and DrugBank                               |