B18zip · High-Quality & Genuine

: Refers to a specific group of survey participants, specifically those part of the 2015 HOS Baseline.

: The name typically stands for "Cohort 18 Baseline ZIP Code" . B18zip

Are you working with , or were you looking for a file compression utility ? hos_dug_c18b.pdf - HOSonline.org : Refers to a specific group of survey