Recombinant human LH supplementation versus recombinant human FSH (rFSH) step-up protocol during controlled ovarian stimulation in normogonadotrophic women with initial inadequate ovarian response to rFSH. A multicentre, prospective, randomized controlled trialGiuseppe De Placido, Antonio Mollo, A Perino et al.|Human Reproduction|2004Cited by 178