N. Malik, S. R. Singhal, S. Nanda, D. Sirohiwal, P. Dahiya, and A. Bharti, “Spectrum of prenatally diagnosed neural tube defects at a tertiary referral hospital in North India: a retrospective cohort study”, Int J Contemp Pediatr, vol. 7, no. 10, pp. 2010–2014, Sep. 2020.