No purchase necessary. This promotion is available only to life science professionals 21 years or older who reside in the United States. A free calendar is available to eligible participants who register on the neb.com website no later than February 1, 2021, or until gift supplies are depleted, whichever comes first. The estimated value of the calendar is $5 USD. One free gift per person. Healthcare professionals cannot participate. By registering, you warrant that you are not prohibited by employment, contract, or law from accepting a gift from NEB. Offer void in where prohibited, licensed or restricted by federal, state, provincial, or local laws or regulation or agency/institutional policy. Other restrictions may apply.