Fig. 1

(A) ATR-FTIR spectra; (B) NIR spectra; the standard deviation values for (C) ATR-FTIR and (D) NIR; and the second-derivative spectra for (E) ATR-FTIR and (F) NIR for the endometriosis and healthy control groups.

(A) ATR-FTIR spectra; (B) NIR spectra; the standard deviation values for (C) ATR-FTIR and (D) NIR; and the second-derivative spectra for (E) ATR-FTIR and (F) NIR for the endometriosis and healthy control groups.