Talvez deva tentar algumas variações de ortografia:
benign serous » benign fibrous (Expandir a Pesquisa)
center serve » center servers (Expandir a Pesquisa), center service (Expandir a Pesquisa), center survey (Expandir a Pesquisa)
serve wause » nerve cause (Expandir a Pesquisa)
wause fatal » cause fatal (Expandir a Pesquisa), causes fatal (Expandir a Pesquisa), caused fatal (Expandir a Pesquisa)
serous case » serious case (Expandir a Pesquisa), serious cases (Expandir a Pesquisa), series case (Expandir a Pesquisa)
mrna serve » mrnas serves (Expandir a Pesquisa), mrnas nerve (Expandir a Pesquisa), rna serves (Expandir a Pesquisa)
serve w » serve _ (Expandir a Pesquisa), serve a (Expandir a Pesquisa)
case de » case due (Expandir a Pesquisa), case d (Expandir a Pesquisa)
j mrna » _ mrna (Expandir a Pesquisa), 1 mrna (Expandir a Pesquisa), 2 mrna (Expandir a Pesquisa)
w dos » e dos (Expandir a Pesquisa), a dos (Expandir a Pesquisa), c dos (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: (( _ center serve w dos ) or ((( j mrna serve wause fatal ) or ( _ benign serous case de ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ center serve w dos ) OR ((( j mrna serve wause fatal ) OR ( _ benign serous case de ))))*.