Assertion: nph insulin | /r/CreatedBy | mixing regular insulin
Facets:
Source sentences:
text: NPH insulin is made by mixing regular insulin and protamine in exact proportions with zinc and phenol such that a neutral-pH is maintained and crystals form.
text: NPH insulin is made by mixing regular insulin and protamine in exact proportions with zinc and phenol such that a neutral-pH is maintained and crystals form.