Occupational asthma caused by a natural food colorant derived from Monascus ruber36694, Vandenplas, O., Caroyer J.M., Cangh F.B., Delwiche J.P., Symoens F., and Nolard N. , J.Allergy Clin.Immunol., 0/6/2000, Volume 105, Issue 6 Pt 1, Number 1242, p.1241 - 1242, (2000)