Not having enough iodine in the diet is a rare cause of hypothyroidism in the U.S. Other causes of primary hypothyroidism include: 1  Certain drugs such as lithium. 2  Radiation exposure to the neck. 3  Radioactive iodine used for treatment of hyperthyroidism (overactive thyroid). 4  Special x-ray dyes.
Princeton, TX. Princeton is located in northeast Texas. Princeton is part of Collin County. Princeton has 7.40 square miles of land area and 0.06 square miles of water area. As of 2010-2014, the total Princeton population is 7,520, which has grown 116.28% since 2000.
AVERY, TX. AVERY, TEXAS. Avery is on the Missouri Pacific Railroad and U.S. Highway 82 sixteen miles southeast of Clarksville in eastern Red River County. When the Texas and Pacific was being constructed through the county in the 1870s, the managers of the railroad planned a station at the site and named it Douglass.