000 00304cam a2200121 4500
001 0683074156
008 091119t1998 xxu||||| |||| 00| 0 eng d
020 _a0683074156
100 _aRoy, F.H.
245 0 _aOcular differential diagnosis.
250 _a6th
260 _aBaltimore
_bWillams and Wilkins
_c1998
999 _c53824
_d53824