Scherger, J. E. (1986). General and Family Practice: Ultrasound in Obstetrics—Safety Considerations.
शिकागो स्टाइल उद्धरणScherger, Joseph E. General and Family Practice: Ultrasound in Obstetrics—Safety Considerations. 1986.
एमएलए उद्धरणScherger, Joseph E. General and Family Practice: Ultrasound in Obstetrics—Safety Considerations. 1986.
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