I think the case study of the women healers who formed groups to practice medicine in OAXACA is an important lesson. This idea is similar to evoke. People share knowledge and talk about problems. I think sharing knowledge very important. Especially when you share knowledge concerning medicine. Sometimes it is easy to help a person who is sick but without having the knowledge how to help or which medicine to give, it can get serious. Antibiotics can for example save a lot of lives. But when people do not know which antibiotics help against which bacteria and how to use it, bacteria could get resistance or people could die.