Term Name:	primary ovarian follicle growth involved in double layer follicle stage
Synonyms:	primary ovarian follicle growth during double layer follicle stage
Definition:	Increase in size of primary follicles including oocyte growth and granulosa and/or theca cell proliferation until more than one layer of granulosa cells is present (preantral follicle), as part of the double layer follicle stage of oogenesis.
Ontology:	GO: Biological Process [GO:0043929]    QuickGO    AmiGO