000 00429nam a2200145Ia 4500
008 180710s9999 xx 000 0 und d
020 _a123810
082 _a617.7
_bWOR
100 _aWORLD Health Organization
245 _aIndicators for assessing vitamin A deficiency and their application in monitorin
260 _aGeneva
_bWorld Health Organization
_c1996
300 _aviii, 66 p.
650 _aEye diseases
942 _cPR
999 _c67326
_d67326