P. Nutsati, S. Bunyavejchevin, P. Ruanphoo, N. Chaiyasit, P. Tangpornprasert, and C. Virulsri, “Reliability of the Cervamet and POPstix in Pelvic Organ Prolapse Quantification Measurement”, Thai J Obstet Gynaecol, vol. 30, no. 5, pp. 321–328, Sep. 2022.