“HPLC-MS/MS/Method/for/Determination/of/Betamethasone/in/Human/Plasma/With/Application/to/a/Dichorionic/Twin/Pregnancy/Pharmacokinetic/and/Placental/Transfers/Studies”. Brazilian Journal of Pharmaceutical Sciences, vol. 59, July 2023, p. e20314, https://www.journals.usp.br/bjps/article/view/215319.