EX-21.1 6 ex21-1.htm EXHIBIT 21.1 ex21-1.htm
Exhibit 21.1
 
SUBSIDIARIES OF THE REGISTRANT
 
NAME OF SUBSIDIARY
OR ORGANIZATION
  
STATE OF INCORPORATION
OR FORMATION
QHP Royalty Sub LLC
  
                                 Delaware
BTI Acquisition I Corp.
  
                                 Delaware
BioTransplant Incorporated
  
                                 Delaware