Bolling, D R <br/><br/>
Prevalence, goals and complications of heterosexual anal intercourse in a gynecologic population.  [electronic resource] 

 -  The Journal of reproductive medicine  Sep 1977 
 - 120-4 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0024-7758 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Black or African American<br/>Age Factors<br/>Anal Canal<br/>Child<br/>Contraception<br/>Ethnicity<br/>Female<br/>Humans<br/>Male<br/>Mexico--ethnology<br/>Orgasm<br/>Sexual Behavior<br/>Sexually Transmitted Diseases--epidemiology<br/>Texas