analyzing
blood
blood test
chemistry
endocrine
free t3
free t4
goiter
health care
hospital
hyperthyroidism
hypothyroidism
lab
laboratory
medical exam
medical technology
medical test
metabolism
research
science
scientific experiment
t3
t4
thyroid function test
thyroid gland
thyroid hormone
thyroid panel
thyroid stimulating hormone
thyroxine
triiodothyronine
tsh