2630638 EEMA external elastic membrane area 9 2630640 EEMA 2-ethoxyethyl methacrylate 2 2630639 EEMA EEMA and lumen area significantly increased from post-intervention to follow-up 1 2630642 EEMA embryo expulsion during a medical abortion 1 2630641 EEMA ethanolic leaf extract of M. albicans 1