Part,  Chapter, Paragraph

1    I,     2.  3    | migration contributing to irregular work remains high. Almost
2    I,     2.  5    | migration contributing to irregular work remains high. Almost
3    I,     2.  5    |   with more weekend work, irregular and less predictable working
4   II,     6.  3.  4|   influenza pandemic~ ~At irregular intervals new influenza
5  III,    10.  5.  3|   with more weekend work, irregular and less predictable working