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Girsen, Anna I., Lillian Sie, Suzan L. Carmichael, Henry C. Lee, Megan E. Foeller, Maurice L. Druzin, and Ronald S. Gibbs. "Rate and Causes of Severe Maternal Morbidity At Readmission: California Births in 2008–2012." J Perinatol 2019.

Girsen, Anna I., et al. "Rate and Causes of Severe Maternal Morbidity At Readmission: California Births in 2008–2012." J Perinatol 2019.