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In sociology and statistics research, snowball sampling [1] (or chain sampling, chain-referral sampling, referral sampling [2] [3]) is a nonprobability sampling technique where existing study subjects recruit future subjects from among their acquaintances. Thus the sample group is said to grow like a rolling snowball.
In medicine, referral is the transfer of care for a patient from one clinician or clinic to another by request. [ 1 ] [ 2 ] Tertiary care is usually done by referral from primary or secondary medical care personnel.
Physician self-referral is a term describing the practice of a physician ordering tests on a patient that are performed by either the referring physician himself or a fellow faculty member from whom he receives financial compensation in return for the referral. Examples of self-referral include an internist performing an EKG, a surgeon ...
Also transmission of referral information is secured, upholding Consumer privacy. Benefits can also be seen beyond the patient level, e-referrals can improve practice productivity. Documentation quality is improved by removing the use of illegible handwriting as well as poor quality faxed documentation.
Screening, brief intervention and referral to treatment is an evidence-based, public health approach aimed at delivering early intervention and treatment services for individuals at risk of developing substance use disorders (SUDs) and those who have already developed these disorders. [1]
The latter referral marketing program benefits the existing customer through increasing reputation and gaining special treatment from the parent company through working without economic payment on presentations and online forums for example . [7] Referral marketing was questioned by managers for the effectiveness and material benefit it could ...
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These referrals may not require formal documentation, but may include a case report. In a direct referral, agencies refer cases to the U.S. Attorney in the district where the crime occurred. [1] The United States Congress and its members, in their investigative role, issue criminal referrals to the Justice Department as well. [2]