The effective field theory of nonsingular cosmology: II Yong Cai, Hai-Guang Li, Taotao Qiu and Yun-Song Piao Eur. Phys. J. C, 77 6 (2017) 369 Published online: 05 June 2017 DOI: 10.1140/epjc/s10052-017-4938-y