I'll leave it to others to figure out how to make routine methods engaging. (educationbythenumbers.org)
However, EC only works within a certain period of time following intercourse and may not be as effective as routine methods of birth control. (rhtp.org)
In a 1988 paper summarizing his findings, Fiebig concluded that xenograft mice were wonderful models for broadly testing new drugs against human tumors, but they «can not be used as a clinical routine method» for predicting patient treatment.1 The idea of using xenograft mice as personal avatars for cancer patients was discarded. (the-scientist.com)