Finite state machines based testing has been successfully applied to RBAC systems and enabled to obtain effective test cases, but very expensive.
Urine based testing has been successful for the detection of common sexually transmitted infections, including Chlamydia trachomatis and Neisseria gonorrhoea.
PCR based testing has been called into question, as false positives can be because of cross-reactivity with related viruses, or to laboratory contamination.
Decreased sensitivity in oral tests compared to blood based tests has been reported [ 14] but there are limited available data on the performance of whole blood tests in the context of self-testing.
Now it is clear that recessive inheritance is also possible and mutations may have been missed in similar cases, because heteroduplex based testing has been used until recently in many large diagnostic centers.
Although polymerase chain reaction-based tests have been developed, they are not widely used in areas where malaria is common as of 2012, due to their complexity.
Agus writes, "If you're a man, prostate specific antigen (PSA) tests can identify prostate cancer early through a simple blood sample". I would have enjoyed reading his analysis of the clinical issues involved in PSA testing; this protein-based test has been controversial for years because of the complexities of interpretation, treatment and prognosis.
More recently, a gel-based test has been developed (Diamed, Cressier, Switzerland) [ 3].
The existence of clinical guidelines for a DNA-based test has been associated with more appropriate use of the test in the context of a DTC campaign [ 36].
A DNA-based test has been available since the discovery of the mutation and producers have been able eliminate the unfavorable RYR1 allele from their herds [ 3].
