[Technical research on termination of early pregnancy].
D000028:Abortion, Induced; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D012098:Reproduction; D012106:Research
Abortion, Induced; Clinical Research; Evaluation; Family Planning; Fertility Control, Postconception; Pregnancy; Pregnancy, First Trimester; Reproduction; Research Methodology