Das Martin Pall Buch "Explaining Unexplained Illnesses" ist in Google Books zu lesen.
http://books.google.ie/books?id=OHradOdFKfUC&pg=PA284&lpg=PA284&dq=Homocysteine+levels+chemical+sensitivities&source=bl&ots=KkU8nLRx6y&sig=V2Gu9GpFIC7SE0zswlvty-g3JA0&hl=en&ei=g0eYSaTcCY-N_ga2kdmKCg&sa=X&oi=book_result&resnum=1&ct=result#PPA273,M1