Vol. 22, no. 5, pp. 1310-1319, 2007
The efficacy of fertility awareness based (FAB) methods of family planning is critically reviewed. The objective was to investigate the efficacy and the acceptability of the symptothermal method (STM), an FAB method that uses two indicators of fertility, temperature and cervical secretions observation. This paper will rec- ommend a more suitable approach to measure the efficacy.