The Cognitive Effects of Micronutrient Deficiency: Evidence from Salt Iodization in the United States.

Iodine deficiency is the leading cause of preventable mental retardation in the world today. The condition, which was common in the developed world until the introduction of iodized salt in the 1920s, is connected to low iodine levels in the soil and water. We examine the impact of salt iodization on cognitive outcomes in the US by taking advantage of this natural geographic variation.

Computed tomography-guided needle aspiration and biopsy of pulmonary lesions: a single-center experience in 1000 patients.

Background: Computed tomography (CT)-guided fine needle aspiration (FNA) and biopsies are well-established, minimally invasive diagnostic tools for pulmonary lesions.

Purpose: To analyze retrospectively the results of 1000 consecutive lung CT-guided FNA and/or core needle biopsies (CNB), the main outcome measures being diagnostic yield, and complication rates.

Material And Methods: Patients considered eligible were those referred to our department for lung lesions.