### person | expert | specialist | dietitian:

Clinical dietitian
* Some clinical dietitians manage small food service departments
  - specialize in the type of patient they help
* ensure dietary management while meeting the patient's nutritional needs.
* identify patients at nutritional risk and plan nutrition intervention as needed.
* work in a hospital setting in a patient-oriented role.
* work in hospitals and nursing homes
  - as members of the health care team
  - on medical teams in healthcare facilities
  - with patients in hospitals and nursing homes

Registered dietitian
* Many registered dietitians specialize in pediatric dietetics, diabetes, renal and nutrition support.
* are food and nutrition experts.
* assess and monitor the nutritional status of all patients.
* assist in nutritional support and education.
* practice in a variety of settings.
* provide recommendations to physicians regarding special diets for patients.

Embryologist
* agree that man is created when sperm and egg unite at the moment of fertilization.
* like to see that most of the cells are incorporated into the morula.
* study the developments processes of organisms.

### person | expert | specialist:

Endocrinologist
* Most endocrinologists see patients every two months throughout the pregnancy.
* Some endocrinologists believe that one in four women have an underactive or overactive thyroid
  - work solely as research physicians
* also develop new drugs and treatments through biogenetic and synthetic techniques
  - specialize in the prevention, diagnosis, and treatment of diabetes mellitus
* are doctors
  - experts in male reproductive hormones and sperm development
  - specialists of internal medicine or pediatrics
  - specially trained physicians who diagnose diseases related to the glands
* assist patients in managing their diabetes.
* care for patients with complex hormonal disorders and metabolic conditions.
* help patients get their hormonal levels back in balance.
* specialize in the treatment of low testosterone
  - treating and preventing bone loss and preventing fractures
* study how the endocrine systems regulate growth and body functions.
* treat diabetics as well as patients with thyroid, adrenal, or pituitary disease
  - diseases affecting the metabolism of the human body
  - patients who suffer from obesity due to metabolic and hormonal problems
* usually have considerable experience in managing patients with hirsutism.

Eye doctor
* Many eye doctors blame strabismus on weak eye muscles which control eye movements.
* Most eye doctors give treatments
  - specialize in care
  - use some sort of automated visual field apparatus
* Some eye doctors recommend surgery.
* can test eyewear for ultraviolet protection.
* use a number of methods to re-attach the retina to the back of the eye
  - an infrared pupillometer to measure the size of the pupils

Geriatrician
* agree that overeating is an enemy of longevity.
  - medical doctors who are specially trained in the care of older adults
* have expertise in caring for multiple issues that are prevalent among older adults.
* specialize in the care of older adults.
* treat people with very special needs.

Gerontologist
* are concerned with aging both as a normal part of life and as a potential problem
* continue to debate what factors lead to aging well.
* specialize in the specific health care needs of the elderly.
* study the changes that people go through as they get older.