Condenser microphones are the most common types of microphones you'll find in studios. They have a much greater frequency response and transient response - which is the ability to reproduce the speed of an instrument or voice.
protein-bound iodine test n. A test to determine thyroid function in which serum protein-bound iodine is measured. The American HeritageÂ® Stedman's Medical Dictionary
A 24-hour urine iodine collection is the most common medical test for diagnosing iodine deficiency. The body eliminates 90% of the iodine ingested daily in the urine, therefore, the level of iodine in urine is a good indication of the amount of iodine found in the body. Iodine deficiency causes a number of medical disorders including goiter and cretinism.