TY  - RPRT
TI  - Why are allergies increasing?
AU  - J Ring
AU  - U Krämer
AU  - T Schäfer
AU  - H Behrendt
PY  - 2001
DO  - 10.1016/s0952-7915(01)00282-5
UR  - https://pubmed.ncbi.nlm.nih.gov/11677093/
ID  - 11677093
ER  -