{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T16:19:27Z","timestamp":1789834767558,"version":"4.0.1"},"reference-count":36,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"3","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>Previously called spontaneous abortion, early pregnancy loss (EPL) is the preferred term encompassing threatened abortion, incomplete abortion, complete abortion, and anembryonic pregnancy. EPL has many causes, including chromosomal abnormalities, immunologic and infectious causes, and underlying maternal risk factors. 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