"What we are finding is that migrant workers, particularly irregular migrant workers, very often young women, around the world are at tremendous risk of serious exploitation," .
The other very important cause of irregular bleeding is pregnancy, and if a different method of contraception is not being used it is also essential to do a pregnancy test.
An anthropocentric humanism finds expression in this novel in the very sensual pleasures of life and in the theory of chaos, pictured as a waterwheel with an irregular spin that creates a butterfly-like pattern which is impossible to predict but beautiful to behold.