A.PracticeGuideline[pt]
B.ClinicalTrial[pt]
C.Editorial[pt]
D.Review[pt]
A.Abstaract
B.Nursingjournals
C.Clinictrial
D.Reviews
A.breastcancer[ti]ANDsurgery[ti]publisdinthelast5years
B.BreastNeoplasms/surgery[Mesh]publisdinthelast5years
C.BreastNeoplasms[Mesh]publisdinthelast5years
D.breastcancersurgery[ti]publisdinthelast5years
A.可用自由词检索,也可用主题词检索
B.检索结果提供所有文献的免费全文
C.提供“自动词汇匹配技术”
D.用主题途径时,若同时选择多个副主题词,检索结果数量会增多
A.“SmithJ[au]”
B.“SmithJ[ab]”
C.“SmithJ[ti]”
D.“SmithJ[issn]”
E.“SmithJ[px]”