Locked twins

Figure 17-5. Locked twins. (Reproduced, with permission, from Benson RC: Handbook of Obstetrics & Gynecology, 4th ed. Lange, 1971.)

Figure 17-5. Locked twins. (Reproduced, with permission, from Benson RC: Handbook of Obstetrics & Gynecology, 4th ed. Lange, 1971.)