000 00652 a2200217 4500
005 20250514202500.0
264 0 _c20040930
008 200409s 0 0 eng d
022 _a0019-8536
040 _aNLM
_beng
_cNLM
100 1 _aFLETCHER, A H
245 0 0 _aPollens; sampling the control.
_h[electronic resource]
260 _bIndustrial medicine & surgery
_cMar 1950
300 _a129-40, illust p.
_bdigital
500 _aPublication Type: Journal Article
650 0 4 _aAllergens
650 0 4 _aHumans
650 0 4 _aPollen
700 1 _aVELZ, C J
773 0 _tIndustrial medicine & surgery
_gvol. 19
_gno. 3
_gp. 129-40, illust
999 _c15096800
_d15096800