#19 is pneumonia, #20 is stick to well marked trails
Obtain a copy of their medical records
I hope these links help with your project :)
https://www.hunker.com/12383329/what-are-examples-of-inorganic-fertilizers
http://www.gardenguides.com/129239-examples-inorganic-fertilizers.html
This may be a sebaceous cyst. This type of bump develops when sebaceous glands are blocked. Sebum builds up and a bump develops. This bump can feel hard to touch. Sebum is naturally produced, so there usually is not inflammation.