Kamath, M., Joseph, T., Karuppusami, R., Chinta, P., Pal, A., Nallamilli, S., Sarkar, S., Poobalan, A. & Kunjummen, A. 2021, 'Knowledge, anxiety levels and attitudes of infertile couples towards COVID-19 and its impact on self-funded fertility treatment : a cross-sectional questionnaire survey', Human Reproduction Open, (4), article no: hoab039. https://doi.org/10.1093/hropen/hoab039