No, the calendar method is a NATURAL method.
i think the most effective method is a condom and the pill No it is Abstinence
Typically medication is the most effective method. Your doctor can help determine what method will work for you.
No!
There are many introductions you could write about the study type method. You could say that the study type method is effective and why it is effective.
The primary difference is in how they count years. They base their years on the reign of an emperor rather than the method of defining them by the Christian calendar.
The scientific method is most effective in proving or finding an answer to your initial Hypothesis. Many times the scientific method will lead you to new questions.
New Style.
You should observe your cycles for around six months before using the calendar method. It is important to recognize that the calendar method isn't very reliable, it is much better to use the symptothermal method to observe and track your cycles - especially if using these methods as birth control. You can read more about symptothermal methods via taking charge of your fertility.
Effective business practices
No
Keeping your employee calendar up to date.