| Number | Date | Country | Kind |
|---|---|---|---|
| 001773441-0001 | Oct 2010 | EM | regional |
| 001773441-0002 | Oct 2010 | EM | regional |
| 001773441-0003 | Oct 2010 | EM | regional |
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| D633534 | Chen et al. | Mar 2011 | S |