Iodine, Iron, Vitamin A and Zinc: study protocols
3 study groups took Iodine together with Iron, Vitamin A and Zinc. These are the doses the studies gave. They are not a recommendation.
Fewer than 5 study groups in one unit match, too few to draw the chart.
Commonly used together
2 of 3 study groups took Iodine, Iron, Vitamin A and Zinc with something else, but nothing that 3 or more different studies gave.
3 study groups