Part, Chapter, Paragraph

 1 Intro     |             challenges that must be overcome. One is rejection, the process
 2 I, 2,2    | immunological barriers that must be overcome for achieving successful
 3 I, 2,2    |   antibodies provides one method to overcome hyperacute rejection.(15)
 4 I, 2,2    |             rejection has also been overcome by methods that inhibit
 5 I, 2,2    |         hyperacute rejection can be overcome, which is the first major
 6 I, 2,2    |           vascular rejection can be overcome, it is expected that there
 7 I, 2,2    |           will be more difficult to overcome than the allogeneic one,
 8 I, 2,3    |       hyperacute rejection has been overcome. In the pig-to-nonhuman-primate
 9 I, 3,6(46)|          barriers and strategies to overcome them, Trends Neurosci 2000;
10 II, 1,9   |    Therefore, it may be possible to overcome initial misgivings by providing