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For electron energies of 50 keV and 180 keV we have investigated the linear polarization in the bremsstrahlung spectrum. In the case of lower energy measurements were taken for the angular dependence of the polarization with a low-Z-target (Z=6). At the higher energy results are given for two targets (Al2O3and Au) at a fixed emission angle (angle of maximum polarization=48°). The measurements are compared with theoretical calculations and with the experimental results ofMotzandPlacious.

Abstract: A woman had a quadruplet IVF pregnancy with a leiomyomatous uterus. Pregnancy resulted in the birth of one baby after missed abortion of one fetus and selective reduction of two others. The woman had a left deep calf vein thrombosis in the first half of pregnancy.