@misc{indiciae1e4f48dc021b, title = {Hormonal changes associated with bleeding during low dose progestogen contraception delivered by Norplant subdermal implants.}, author = {A Faúndes and F Alvarez-Sanchez and V Brache and E Jimenez and A S Tejada}, year = {1991}, doi = {10.1007/bf01850722}, url = {https://pubmed.ncbi.nlm.nih.gov/1908178/}, note = {Source identifier: 1908178} }