Source: ASCII MeSH files (d2022.bin and c2022.bin) downloaded from https://nlmpubs.nlm.nih.gov/projects/mesh/MESH_FILES/asciimesh/at Dec 14 16:16 (JST)
Method:
step1: Selected records that have tree numbers (MN) beginning with 'D' and took preferred term (MH), synonyms (ENTRY and PRINT ENTRY: terms at the left of the first vertical bars), CAS names (N1), and the corresponding MeSH Unique IDs (UI) from the descriptor file (d2022.bin).
step2: Selected records that have descriptor ID (HM) that corresponds to an entry in step1, and took preferred term (NM) and synonyms (SY), and the corresponding MeSH Unique IDs (UI) from the supplementary records file (c2022.bin).
