Talvez deva tentar algumas variações de ortografia:
research system » research systems (Expandir a Pesquisa)
lung research » aging research (Expandir a Pesquisa)
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter nerve (Expandir a Pesquisa)
local nerve » facial nerve (Expandir a Pesquisa), sacral nerve (Expandir a Pesquisa), local neural (Expandir a Pesquisa)
system de » system der (Expandir a Pesquisa), system delay (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), j centeno (Expandir a Pesquisa), j cestero (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
c dias » c diaz (Expandir a Pesquisa)
j lung » j luna (Expandir a Pesquisa), j lunt (Expandir a Pesquisa), j lund (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( j center nerve case dis ) or ( i local nerve c dias ))) or ( j lung research system de ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j center nerve case dis ) OR ( i local nerve c dias ))) OR ( j lung research system de ))*.