Subject
Corn Varieties
3
Hybrid corn
3
Life expectancy
3
Soybean
3
Soybean Varieties
3
United States
3
Alcoholism Treatment
2
Drug abuse Treatment
2
Global temperature changes
2
Mortality
2
Precipitation variability
2
Substance abuse Treatment
2
Substance abuse treatment facilities
2
Substance abuse treatment facilities States
2
Temperature
2
Blood Analysis
1
Cell phones
1
Cities and towns
1
Clinical chemistry
1
Drinking water Contamination
1
Geography
1
Health surveys
1
Hispanic Americans Health and hygiene
1
Hispanic Americans Mortality
1
Human beings
1
Hydrology
1
Longevity
1
Old age
1
Older people Health and hygiene
1
Older people Medical care
1
Precipitation (Meteorology)
1
Runoff
1
Soldiers Mortality
1
Stream measurements
1
Sunflowers Varieties
1
War casualties
1
Water Pollution
1
Watersheds
1
Wireless communication systems
1