About Us

Established in 1969, Medical Laboratory Observer (MLO) connects clinical laboratory professionals with peer-authored articles; continuing education (CE) courses; lab management tips; new testing techniques in molecular diagnostics, infection prevention, and oncology and pathology practices; regulatory updates; industry trends; and new product reviews.

MLO is part of Endeavor Business Media, a division of EndeavorB2B. A multimedia resource, MLO delivers eight print magazines and digital editions per year, a daily e-newsletter (LABline), monthly product spotlights, and a comprehensive website for lab professionals working in hospitals, group practices, physicians’ offices, public health and independent labs, as well as blood banks, medical schools, freestanding emergency care centers, group purchasing organizations, and HMO/PPOs.

MLO also publishes Clinical Laboratory Reference (CLR), an annual buyers' guide and resource guide for reference intervals, critical values, and cutoff concetrations, mailed to MLO subscribers each August.

An annual subscription is free to qualified clinical professionals.