Heterotopic triplet pregnancy with an intrauterine, a tubal, and a cervical gestation following in vitro fertilization and embryo transfer - Cheng-Kuan Lin; Kuo-Chang Wen; Pi-Lin Sung; Shih-Cheih Lin; Chiung-Ru Lai; Kuan-Chong Chao; Ming-Shyen Yen; Chia-Chien Chen; Hsin-Yang Li; Loy-Lan Too (Elsevier, 2013)