URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::ae8fb4981e7fbe8728a21cc37afb76edhttps://doi.org/10.1097/00007611-199009001-00106
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::60bb435069a3d12a6595fe3e3394bc8ahttps://doi.org/10.1097/00007611-199710001-00359
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::ecd09465c49b40ebfc1e3a7f666ee4f5https://doi.org/10.1097/00007611-199510001-00251