APA

Robertson C. M., Hrynchyshyn G. J., Etches P. C. & Pain K. S. (19921125). Population-based study of the incidence, complexity, and severity of neurologic disability among survivors weighing 500 through 1250 grams at birth: a comparison of two birth cohorts. : Pediatrics.

Chicago

Robertson C M, Hrynchyshyn G J, Etches P C and Pain K S. 19921125. Population-based study of the incidence, complexity, and severity of neurologic disability among survivors weighing 500 through 1250 grams at birth: a comparison of two birth cohorts. : Pediatrics.

Harvard

Robertson C. M., Hrynchyshyn G. J., Etches P. C. and Pain K. S. (19921125). Population-based study of the incidence, complexity, and severity of neurologic disability among survivors weighing 500 through 1250 grams at birth: a comparison of two birth cohorts. : Pediatrics.

MLA

Robertson C M, Hrynchyshyn G J, Etches P C and Pain K S. Population-based study of the incidence, complexity, and severity of neurologic disability among survivors weighing 500 through 1250 grams at birth: a comparison of two birth cohorts. : Pediatrics. 19921125.