2.2. Searching strategy

The online literature will be searched using the following combination of medical subject heading terms: “prenatal care” OR “prenatal nursing” AND “reduced-visit” OR “reduce visit” OR “virtual visit.” MEDLINE (PubMed), EMBASE (OVID), Cochrane Central Register of Controlled Trials (CENTRAL), and Web of Science (ISI database) will be searched without any language restrictions (Fig. (Fig.1).1). The reference lists of the included studies will be also checked for additional studies that are not identified with the database search.

Flow diagram of study identification.

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