Talvez deva tentar algumas variações de ortografia:
medulla nerve » medullated nerve (Expandir a Pesquisa), medulla derived (Expandir a Pesquisa), medulla rvm (Expandir a Pesquisa)
center nurse » center nurses (Expandir a Pesquisa), letter nurse (Expandir a Pesquisa), cancer nurse (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
nurse cyst » nurse case (Expandir a Pesquisa), nurse system (Expandir a Pesquisa)
system di » system de (Expandir a Pesquisa), system d (Expandir a Pesquisa), system dias (Expandir a Pesquisa)
j medulla » _ medulla (Expandir a Pesquisa), a medulla (Expandir a Pesquisa), da medulla (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), j centeno (Expandir a Pesquisa), j cestero (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
j crest » _ crest (Expandir a Pesquisa), a crest (Expandir a Pesquisa), 5 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: (((( j crest nerve system di ) or ( j center nurse cyst dis ))) or ( j medulla nerve case dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j crest nerve system di ) OR ( j center nurse cyst dis ))) OR ( j medulla nerve case dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j crest nerve system di ) or ( j center nurse cyst dis ))) or ( j medulla nerve case dis ))*.