877737 DOP dopamine 55 877600 DOP days of pregnancy 10 877793 dop dilute-opisthotonus 7 877794 dop day of pregnancy 4 877796 dop 2,3-dihydro-(1,4)dioxino(2,3-f)(1,10)phenanthroline 3 877792 dop drop out 3 877795 dop Ir-doped 1