Fig. 4
From: Sex-selective abortions over the past four decades in China
Number and proportion of sex-selective abortions. Note \(N_{ssa}\) denote the number of sex-selective induced abortions, \(P_{ssa/a}\) represent the proportion of sex-selective induced abortions to the total induced abortions, \(P_{{ssa/(ssa + B_{f} )}}\) represent the proportion of sex-selective induced abortions to the expected number of female births