Dear Dr. Roach: Regarding urine collection in boot camp, I had the same experience in the fall of 1962. As I remember the story, after a few weeks in “captivity,” our systems were cleaned out and our ...

This study was done to clarify the optimal number and type of casual urine specimens required to estimate urinary sodium/potassium (Na/K) ratio in individuals with high blood pressure. A total of 74 ...