103461
Oxygen diffusion-enhancing compounds have shown promise in the treatment of conditions associated with hypoxia ( a lack of oxygen in tissues ) and ischemia ( a lack of oxygen in the circulating blood supply ) .
 hypoxia, ischemia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 hypoxia, ischemia