TY  - RPRT
TI  - Do negative air ions affect human mood and performance?
AU  - A Hedge
AU  - M D Collis
PY  - 1987
DO  - 10.1093/annhyg/31.3.285
UR  - https://pubmed.ncbi.nlm.nih.gov/3426028/
ID  - 3426028
ER  -