References | Number of cases | Sex | Number of bilateral cases |
---|---|---|---|
Choi et al., 2002 [2] | 18 | 5 M; 13 F | 0 |
Yuen et al., 2007 [14] | 17 | 6 M; 11 F | 1 |
el-Din and el-Hamd, 1999 [3] | 8 | 1 M; 7 F | 1 |
Kuriloff, 1987 [7] | 26 | 7 M; 19 F | 1 |
Roed-Petersen, 1969 [9] | 116 | 26 M; 90 F | 13 |
Vasconcelos et al., 1999 [13] | 15 | 2 M; 13 F | 1 |
Kato et al., 2007 [5] | 3 | 1 M; 2 F | 0 |
Walsh-Waring, 1967 [10] | 6 | 1 M; 5 F | 0 |
Our department | 20 | 2 M; 18 F | 1 |