All patients in the r-hLH 2,750 ( 13/13 ) , 5,500 ( 12 / 12 ) , 11,000 IU ( 13/13 ) , and u-hCG 5,000 IU ( 12 / 12 ) groups ovulated ; 3/5 patients in the r-hLH 825 IU and 2/12 in the r-hLH 22,000 IU group failed to ovulate ( p = 0.105 between evaluable groups ) .