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Therefore, considerable effort is being devoted to the development of noninvasive methods of tubal occlusion with the use of a suitable mechanical or chemical agent.Mechanical devices like coils, micro spindles 9 , silicon plugs 10 , and hydrogel are inert and occlude or stretch the lumen of the tube, obstructing ovum or sperm passage 11 .Chemical agents include ethanol, tetracycline, quinacrine hydrochloride, and sclerosing agents 12,13,14,15,16 .Nevertheless,
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Amer et al. (2018) studied this question.
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