الوصول الحر: https://doaj.org/article/dd7142d312624dbb904ee04f4f822246Test
الوصول الحر: https://ndlsearch.ndl.go.jp/books/R100000039-I11300845Test
الإتاحة: https://doi.org/10.1055/s-0035-1556584Testhttps://ir.ymlib.yonsei.ac.kr/handle/22282913/146551Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=jairo_______::d8eca6fba5f5151b18d6c7a3e95be4d7Testhttp://hdl.handle.net/10564/3550Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcade32acbbb7e18aed27f91b4ba1b64Testhttps://pubmed.ncbi.nlm.nih.gov/31448191Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6bbc780eed8a28924722ade6096efceTesthttps://doi.org/10.1097/md.0000000000025987Test
الإتاحة: https://doi.org/10.1016/j.spinee.2017.07.001Testhttp://repository.ajou.ac.kr/handle/201003/17620Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90e26926f9d35a7bc2dac81fc3166a03Testhttp://europepmc.org/articles/PMC4771508Test