Schering AG Mulling Whether To Acquire Complete Rights To Betaferon

FRANKFURT, Germany (AP) -- Drug maker Schering AG said Thursday it is still mulling whether to acquire completely the rights to multiple sclerosis treatment Betaferon. Schering has to decide whether it wants to buy the complete rights from U.S. biotech Chiron Corp., which Novartis AG is planning to take over by mid-2006.

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