Matrix method of research in oncology
Yu. Ya. Gritsman , E. N. Slavnova , M. I. Chaplyuk , I. N. Batinov , M. A. Kunitsina , A. A. Motorin
Kazan medical journal ›› 1989, Vol. 70 ›› Issue (6) : 445 -447.
Matrix method of research in oncology
Ways of determining whether objects or phenomena differ by comparing similar groups are well known. For example, uncontrolled and controlled ways of assessing differences in outcomes are used when evaluating treatments. Uncontrolled trials are conducted by evaluating outcomes in only one group of patients or by comparing them with previously treated patients (historical controls). Controlled clinical trials are prospective studies in which two groups of patients are compared and receive different treatments: one with a conventional treatment and the other with a new study.
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