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APA Citation
Hajizadeh, M., Heymann, J., Strumpf, E., Harper, S., & Nandi, A. (2015). paid maternity leave and childhood vaccination uptake: Longitudinal evidence from 20 low-and-middle-income countries. Social science & medicine, 140, 104–117. http://access.bl.uk/ark:/81055/vdc_100042328485.0x00002d