Dr Buckley and his colleagues worked out the chemical "fingerprint" of every ingredient, although each element could have come from a number of sources.
Dr Buckley iyo saaxiibadiisa shaqada ayaa ka shaqeeyay tijaabadan oo lagu abbaarayay "faro laga qaaday" haraadiga meydadka keydsanaa, in kastoo natiijada ay ka soo baxday ilo dhowr ah.