【医】正负法

major and serious criminal cases positive negative bipolar cases method individual cases positive negative incidence (of criminal cases) in most cases deductive method final method genetic method method of positive and negative cases right and wrong cases method method of right and wrong cases positive and negative syndrome scale positive and negative hCG urine controls positive-negative theory of negative and positive effects of affections negative method positive negative pressure ventilation positive-negative ambivalent quotient negative-to-positive development