LRFN2 and male infertility: Mutation screening was carried out for 13 probably associated genes with male infertility, namely, OTOGL [6], DOCK8 [12], GOLGA4[13], SALL1 [14], NRAP [15], SMYD4 [15], SLITRK1 [15], COBL [16], ZNF214 [17], LRFN2 [18], LRPPRC [19], OR2W3 [20], and CCDC77 [15].