formaldehyd aldehyd alkanal leukämie hodgkin nasenhöhle bronchial krebs holz
textil schadstoff belastung risiko kanzerogen exposition arbeitsmedizin arbeitsschutz
The
credibility
of
the
scientific
expert,
be
he
an
engineer,
therapist
or
manager,
is
the
Achilles'
heel
of
the
industrial
age.
Ivan Illich