Talvez deva tentar algumas variações de ortografia:
col femoral » colo femoral (Expandir a Pesquisa), acl femoral (Expandir a Pesquisa), total femoral (Expandir a Pesquisa)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
femoral de » femoral deep (Expandir a Pesquisa), femoral _ (Expandir a Pesquisa), femoral a (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
de system » de systeme (Expandir a Pesquisa), ode system (Expandir a Pesquisa), ade system (Expandir a Pesquisa)
2 retinal » a retinal (Expandir a Pesquisa), 2 retinol (Expandir a Pesquisa), 3 retinal (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
system d » system de (Expandir a Pesquisa), system der (Expandir a Pesquisa), system des (Expandir a Pesquisa)
i crest » i crestr (Expandir a Pesquisa), _ crest (Expandir a Pesquisa), a crest (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: (((( col femoral de system d ) or ( i crest nerve cyst due ))) or ( 2 retinal nerve cat due ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( col femoral de system d ) OR ( i crest nerve cyst due ))) OR ( 2 retinal nerve cat due ))*.