title: New data show Norplant effective for 7 years.
mesh_terms: D000349:Africa; D000352:Africa, Northern; D000569:Americas; D001208:Asia; D001210:Asia, Southeastern; D017691:Caribbean Region; D002677:Chile; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D019049:Developed Countries; D003906:Developing Countries; D004293:Dominican Republic; D004534:Egypt; D005060:Europe; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D005387:Finland; D006262:Health; D007843:Latin America; D016912:Levonorgestrel; D008877:Middle East; D009656:North America; D011634:Public Health; D012449:Safety; D012537:Scandinavian and Nordic Countries; D012846:Singapore; D013020:South America; D013785:Thailand; D014481:United States
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D016912:Levonorgestrel
keywords: Africa; Americas; Arab Countries; Asia; Caribbean; Chile; Contraception; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Agents, Progestin; Contraceptive Effectiveness; Contraceptive Implants; Contraceptive Methods; Developed Countries; Developing Countries; Dominican Republic; Egypt; Europe; Family Planning; Finland; Health; Latin America; Levonorgestrel; Mediterranean Countries; North America; Northern Africa; Northern America; Northern Europe; Public Health; Safety; Scandinavia; Singapore; South America; Southeastern Asia; Thailand; United States; Use-effectiveness