Talvez deva tentar algumas variações de ortografia:
medulla derived » media derived (Expandir a Pesquisa), medaka derived (Expandir a Pesquisa), medulla edited (Expandir a Pesquisa)
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
derived cyst » derived cysts (Expandir a Pesquisa), derived cast (Expandir a Pesquisa), derived cat (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa), hemi central (Expandir a Pesquisa)
a medulla » da medulla (Expandir a Pesquisa), _ medulla (Expandir a Pesquisa), a medula (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j center (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 cent nerve system dis ) or ( i central nerve cyst dis ))) or ( a medulla derived cyst dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cent nerve system dis ) OR ( i central nerve cyst dis ))) OR ( a medulla derived cyst dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cent nerve system dis ) or ( i central nerve cyst dis ))) or ( a medulla derived cyst dis ))*.