John Greer Clark PH.D.

Lymph nodes, also known as lymph glands, are situated throughout the body and are important to the body’s immune system. They are palpable and visible when they are swollen or enlarged. Lymph nodes can be found in every region of the body, and any problem of the lymph nodes will be a sign of...

Campylobacter InfectionOne of the main causes of diarrhea is Campylobacter. It is also one of the major causes of foodborne illnesses. When it infects the gastrointestinal tract, it can cause cramps, fever, and diarrhea. Campylobacter infections can be prevented by good handwashing habits and food...

This is a procedure which surgically destroys the uterine lining (endometrium). The aim of endometrial ablation is to minimize menstrual flow. No incision is required for this procedure. A light viewing hysteroscope is inserted through the channels between the vagina and cervix. The procedure may be...

Scientists recently discovered the altered expression of one protein in the body that may change the way physicians treat and diagnose lupus in the future.Lupus is an autoimmune disease, in which the body starts attacking its own major tissues and organs. It is a disease that does not have any fixed...

When educators are faced with a child that responds differently in a classroom environment that what is typically expected, teaching that child can be a daunting task. It’s not uncommon knowledge that children with autism, especially if they have a more severe form of autism, don’t always...

Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...