Talvez deva tentar algumas variações de ortografia:
nervous apnoea » nervous dyspnoea (Expandir a Pesquisa), nervous aphonia (Expandir a Pesquisa), nervous ande (Expandir a Pesquisa)
renal nerve » retinal nerve (Expandir a Pesquisa), cranial nerve (Expandir a Pesquisa), spinal nerve (Expandir a Pesquisa)
cena nerve » beta nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa), retina nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
apnoea dis » apnoea risk (Expandir a Pesquisa), apnoea does (Expandir a Pesquisa), apnoea due (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
nerve cn » nerve can (Expandir a Pesquisa), nerve c (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa)
j renal » j real (Expandir a Pesquisa), j renaldi (Expandir a Pesquisa), j renato (Expandir a Pesquisa)
i cena » a cena (Expandir a Pesquisa), _ cena (Expandir a Pesquisa), e cena (Expandir a Pesquisa)
cn die » can die (Expandir a Pesquisa), en die (Expandir a Pesquisa), un die (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: (((( i cena nerve cyst due ) or ( j central nervous apnoea dis ))) or ( j renal nerve cn die ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i cena nerve cyst due ) OR ( j central nervous apnoea dis ))) OR ( j renal nerve cn die )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i cena nerve cyst due ) or ( j central nervous apnoea dis ))) or ( j renal nerve cn die ))*.