What is the content of Prof. Rötzer’s open letter to his MD colleagues?
13 Prof. Rötzer’s open letter to his MD colleagues Reproduced here is an abridged and modified version of his open letter, p. 131, “Natural Conception regulation”: My dear colleague, Around the world there is an evident and increasing interest in the symptothermal method STM. The World Health Organisation in Geneva, for instance, has its own working party dealing with methods for the determination of a woman’s fertile period. The STM is fundamentally different from the obsolete and unreliable calendar rhythm methods of Knaus and Ogino, and goes far beyond the old basal body temperature methods. Under certain circumstances it is even possible to forego the use of the thermometer altogether. The most efficient method is the STM. There are hundreds of centres in dozens of countries across the face of the globe teaching this modern form of natural family planning. When the timing of the fertile phase is undertaken as a cooperative effort involving both spouses (and not relegated to the wif
