Human Genome Sciences Inc. Q1 2009 Earnings Call Transcript April 29, 2009 <a href="http://seekingalpha.com/article/134093-human-genome-sciences-inc-q1-2009-earnings-call-transcript?source=feed" rel="nofollow" target="_blank">http://seekingalpha.com/article/134093-human-genome-sciences-inc-q1-2009-earnings-call-transcript?source=feed</a>