continental United States
| Firth Author | Year | Full citation | Keywords |
|---|---|---|---|
| Frenz | 1999 | Frenz D.A., 1999. Volumetric regweed pollen data for eight cities in the continental United States. Annals of Allergy, Asthma & Immunology 82:41-46 |
ragweed, volumetric data, continental United States, cities |