Part,  Chapter, Paragraph

1   II,     5.  2.  7| case-control study. Lancet 364: 937-952.~ ~ ~
2   II,     9.  1.  1|       study. Bmj 2006;332(7547):937-9.~ ~Lin HC, Xirasagar S (
3   II,     9.  3.  2|       study. Bmj 2006;332(7547):937-9.~ ~Le Fort L (1866) :