You must submit your correlations or covariances into a com-. puter program to extract your factors. This step is too complex to reasonably be done by hand. There. are a number of diï¬erent extraction methods, including maximum likelihood, principal component, and principal axis extraction. The best method is generally maximum likelihood extraction, unless you. seriously lack multivariate normality in your measures.
However the incidence of malignancy (invasive or in situ) as a cause of PND varies between 1 and 23% depending upon the series studied [3]. A solitary papilloma is not thought to be a pre-malignant lesion [5] and is considered by some to be an aberration rather than a true disease process [6].
Infection with human papillomavirus is also a risk factor for penile cancer (cancer of the penis). Some types of human papillomaviruses are referred to as low-risk viruses because they rarely cause cancer.Human papillomaviruses that are more likely to lead to the development of cancer are referred to as high-risk..ost genital human papillomavirus infections come and go over the course of a few years. However, sometimes human papillomavirus infection may persist for many years, with or without causing cellular abnormalities. The majority of human papillomaviruses produce warts on the hands, fingers, and even the face.