Answer:
A hematologist is a doctor who specializes in blood and different forms of blood diseases. They can explore things like von Wilda brands, or things like cancer in the blood.
Nephrologists is a doctor who specializes in kidneys and pediatric medicine (medicine for young child or teens)
Endocrinologists is a doctor who specializes in glands and hormones. They also can treat certain diseases like Diabetes!
Step-by-step explanation:
Hematologist: my mom goes to one
Nephrologists: I've been to one
Endocrinologists: I learned about it in school
Hope this helps! :)