References
- MERCK & Co, EP-462661–A2.
- MERCK & Co, EP-465142–A.
- SMITHKLINE BEECHAM, W09119732.
- SMITHKLINE BEECHAM, W09113550.
- SMITHKLINE BEECHAM, W09200010.
- MERRELL Dow PHARMACEUTICALS, EP–469548–A2.
- MERRELL Dow PHARMACEUTICALS, EP–469547–A2.
- SANICYO Co LTD, EP–484094–A2.
- ONO PHARM Co LTD, US4935240.
- ONO PHARM Co LTD, EP–463638–A
- YAMANOUCHI PHARM Co, W09213828.