In medicine, there are four levels of care: primary, secondary, tertiary, and quaternary. The levels of care refer to the complexity of the medical cases that healthcare providers treat and the skills ...

Wound healing is the process that the skin goes through as it repairs damage from wounds. There are three main types of wound healing, known as primary, secondary, and tertiary wound healing. Every ...

Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician (CMT). Katrina Ávila Munichiello is an experienced editor, writer, fact-checker, and ...