@misc{indiciae0e7765e018d5, title = {[A system to improve the efficiency for detecting human chorionic gonadotropin].}, author = {P Fletcher and S Benavides and A Ayala and V Reyes}, year = {1987}, url = {https://pubmed.ncbi.nlm.nih.gov/2484886/}, note = {Source identifier: 2484886} }