Profile Changes in Weight and Body Mass Index of Single Rod Levonorgestrel Implant Acceptor (MonoplantÂ®): Profil Perubahan Berat Badan dan Indeks Masssa Tubuh Akseptor Implan Levonorgestrel Satu Batang (MonoplantÂ®) - Gunardi, Eka R. (Indonesian Socety of Obstetrics and Gynecology, 2020)