Assertion: sperm bank's donor | /r/HasProperty | agreed in writing
Facets:
Source sentences:
text: According to California Family Code §7613, “ The donor of semen provided to a licensed physician and surgeon or to a licensed sperm bank for use in assisted reproduction by a woman other than the donor's spouse is treated in law as if he were not the natural parent of a child thereby conceived, unless otherwise agreed to in a writing signed by the donor and the woman prior to the conception of the child.