Assertion: prolactin | /r/AtLocation | serum
Facets:
Source sentences:
text: Prolactin appears in serum in three different forms.
text: However, prolactin may also be present in the serum in varying quantities as big-prolactin (typically 15–30%;5 M r = 60 kDa) and macroprolactin (typically 0–10%;5 a prolactin-IgG complex of M r = 150 kDa) which are thought to be biologically inactive.