title: [Biophysical foundation of antifertility by physical agents].
authors.forename: C X
authors.initials: CX
authors.lastname: Lu
mesh_terms: D001208:Asia; D002681:China; D003267:Contraception; D003906:Developing Countries; D003933:Diagnosis; D004467:Economics; D005193:Family Planning Services; D005202:Asia, Eastern; D010808:Physical Examination; D012106:Research; D013672:Technology; D014465:Ultrasonics
keywords: Asia; China; Contraception; Developing Countries; Eastern Asia; Economic Factors; Examinations And Diagnoses; Family Planning; Physical Examinations And Diagnoses; Research And Development; Technology; Ultrasonics--side effects