Results 161 to 170 of about 1,174,804 (207)

Evaluation of the concordance between nasopharyngeal and oropharyngeal swabs in the detection of COVID-19. [PDF]

open access: yesJ Public Health Afr
Tchouaket MCT   +25 more
europepmc   +1 more source

New-Onset Atrial Flutter Revealing a Large Right Coronary Artery to Superior Vena Cava Fistula. [PDF]

open access: yesJACC Case Rep
Acharya S   +8 more
europepmc   +1 more source

Guía del mundo el mundo visto desde el sur

open access: yes, 1992
Instituto del Tercer Mundo (Montevideo)
core  

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