Sue Ping Thang, Winnie Wing Chuen Lam, Aaron Kian Ti Tong, John Carson Allen, Anna Siah Lee Ler, Young Soon Tay, Soma Somanesan, Ravindran Kanesvaran, Alvin Wong, David Chee Eng Ng Characterisation of serum progesterone and progesterone-induced blocking factor (PIBF) levels across trimesters ...