@misc{indiciae0305e46cd051, title = {Probabilities for singleton and multiple pregnancies after in vitro fertilization.}, author = {P M Martin and H G Welch}, year = {1998}, doi = {10.1016/s0015-0282(98)00220-9}, url = {https://pubmed.ncbi.nlm.nih.gov/9757876/}, note = {Source identifier: 9757876} }