Wittrock, C., & Peethumnongsin, E. (2017). Emergency department ultrasound in pregnancy. In Emergency Department Management of Obstetric Complications (pp. 15–30). https://doi.org/10.1007/978-3-319-54410-6_2

Wittrock, C., and E. Peethumnongsin. “Emergency department ultrasound in pregnancy.” In Emergency Department Management of Obstetric Complications, 15–30, 2017. https://doi.org/10.1007/978-3-319-54410-6_2.

Wittrock C, Peethumnongsin E. Emergency department ultrasound in pregnancy. In: Emergency Department Management of Obstetric Complications. 2017. p. 15–30.

Wittrock, C., and E. Peethumnongsin. “Emergency department ultrasound in pregnancy.” Emergency Department Management of Obstetric Complications, 2017, pp. 15–30. Scopus, doi:10.1007/978-3-319-54410-6_2.

Wittrock C, Peethumnongsin E. Emergency department ultrasound in pregnancy. Emergency Department Management of Obstetric Complications. 2017. p. 15–30.