Ragweed pollen (substance)
| Code | 256303006 |
|---|---|
| Semantic tag | substance |
| Module | international |
| Definition | primitive |
| Effective time | 20020131 |
256292005Flower and weed pollen
substance
698721004Ambrosia artemisiifolia pollen
substance
698724007Ambrosia psilostachya pollen
substance
260106002Giant ragweed pollen
substance