References

1. Product "S" is SYNTHROID (Knoll Pharmaceutical Company, Mount Olive,NJ

2. The leading product/brand on the US thyroid market is SYNTHROID (IMS America)

3. Merck KGaA, Darmstadt, Germany (data on file)

4. Study on file at EM Pharma (Principal investigator: William H. Barr, Richmond, VA)