Твой соседский доктор / Your Neighborhood Doctor (1972)

Not feeling to well? lets go to the doctor maybe he or the nurses know what to do. Hardcore sex. Ends very abrupt. the imdb states the running time as 55 min and this one is 00.54.58 so still (almost) complete.
While the neighborhood doctor tends to a woman who claims there's a cuckoo bird in her private areas, the three nurses find little resistance when each takes a different male patient to the back room and takes advantage of him.