- Brown JB. (2011) Types of ovarian activity in women and their significance: the continuum (a reinterpretation of early findings). Human reproduction update, 17(2), 141–158.
- Blackwell LF, Brown JB. Vigil P, Gross B, Sufi S, & d’ Arcangues C. (2003). Hormonal monitoring of ovarian activity using the Ovarian Monitor, Part I. Validation of home and laboratory results obtained during ovulatory cycles by comparison with radioimmunoassay. Steroids, 68(5), 465–476.
- Blackwell LF, Vigil P, Gross B, d’ Arcangues C, Cooke DG, & Brown JB. (2011) Monitoring of ovarian activity by measurement of urinary excretion rates of estrone glucuronide and pregnanediol glucuronide using the Ovarian Monitor, Part II: reliability of home testing. Human Reproduction, 27(2), 550–557.doi:10.1093/humrep/der409
- Blackwell LF, Vigil P, Cooke DG, d’ Arcangues C, & Brown JB. (2013). Monitoring of ovarian activity by daily measurement of urinary excretion rates of oestrone glucuronide and pregnanediol glucuronide using the Ovarian Monitor, Part III: Variability of normal menstrual cycle profiles. Human Reproduction, 28(12), 3306–3315.
- Blackwell LF, Vigil P, Alliende ME, Brown S, Festin M, & Cooke DG. (2015). Monitoring of ovarian activity by measurement of urinary excretion rates using the Ovarian Monitor, Part IV: the relationship of the pregnanediol glucuronide threshold to basal body temperature and cervical mucus as markers for the beginning of the post-ovulatory infertile period. Human Reproduction.
- Bouchard T, Blackwell L, Brown S, Fehring R, & Parenteau-Carreau S. (2018) Dissociation between Cervical Mucus and Urinary Hormones during the Postpartum Return of Fertility in Breastfeeding Women. The Linacre Quarterly, 85(4), 399–411.
- Brown S, Cooke DG, Blackwell LF & Simcock DC. (2019) The spurious correlation between concentration and creatinine-corrected concentration in urine. International Journal of Open Information Technologies. 7(2), 2307-8162.
- Cooke DG, Blackwell LF, & Brown S. (2019) One the distribution of urine output in normally cycling women. Biometrical Letters. 56(1), 71-87.
- Blackwell LF, Cooke DG, & Brown S. (2018) The Use of Estrone-3-Glucuronide and Pregnanediol-3-Glucuronide Excretion Rates to Navigate the Continuum of Ovarian Activity. Frontiers in public health, 6, 153.
- Blackwell L, Cooke D, & Brown S. (2018) Self-Monitoring of Fertility Hormones. The Linacre Quarterly, 85(1), 26–34.
- Brown S, Cooke DG, & Blackwell LF. (2018) Monitoring the menstrual cycle using urinary oestrone glucuronide: the relationship between excretion rate and concentration. International journal of basic Medical Sciences and Pharmacy (IJBMSP) 8(2) 2049-4963.
- Brown S, Blackwell LF, & Cooke DG. (2017) Online fertility monitoring: some of the issues. International Journal of Open Information Technologies. 5(4) 2307-8162.
- Brown S, Cooke DG, & Blackwell LF (2015). Estimation of the uncertainty of analyte concentration from the measurement uncertainty. Scandinavian Journal of Clinical and Laboratory Investigation, 75(5), 367–373.
- Blackwell LF, & Brown JB. (1992). Application of time-series analysis for the recognition of increases in urinary estrogens as markers for the beginning of the potentially fertile period. Steroids, 57(11), 554–562.
- Brown JB, Holmes J, & Barker G. (1991). Use of the Home Ovarian Monitor in pregnancy avoidance. American Journal of Obstetrics and Gynecology, 165(6), 2008–2011.
- Brown JB, Blackwell LF & Holmes J & Smyth. (1989) New assays for identifying the fertile period. International Federation of Gynecology and Obstetrics. Suppl. 1:111-122
- Vigil P, García M, Villalobos T, Córdova A, & Morales P (1992) Predicción de ovulación en mujeres normales. Revista Latinoamericana. Esterilidad y Fertilidad, 5: 31-35.
- Vigil P, Lyon C, Flores B, Rioseco H & Serrano F. (2017) Ovulation, A Sign of Health. The Linacre Quarterly, 84(4), 343–355.
- Del Río JP, Alliende MI, Molina N, Serrano FG, Molina S & Vigil P (2018) Steroid Hormones and Their Action in Women’s Brains: The Importance of Hormonal Balance. Front. Public Health 6:141.
- Vigil P, Cortés ME, Zúñiga A, Riquelme J & Ceric F. (2009) Scanning electron and light microscopy study of the cervical mucus in women with polycystic ovary syndrome. Journal of Electron Microscopy 58(1): 21–27.