Jon Weingart, MD, discusses whether having a brain tumor means a patient needs surgery. Dr Weingart is a neurosurgeon and professor of Neurological Surgery and Oncology at Johns Hopkins Medicine. Surgery is one type of treatment for brain tumors.
Noun. 1. doctrine-a belief (or system of beliefs) accepted as authoritative by some group or school. ism, philosophical system, philosophy, school of thought.
1580s, Logos, the divine Word, second person of the Christian Trinity, from Greek logos word, speech, discourse, also reason, from PIE root *leg- to collect (with derivatives meaning to speak, on notion of to pick out words; see lecture (n.)); used by Neo-Platonists in various metaphysical and theological senses and picked up by New ...