Edited sentence: " "Leaders of conventional medicine may no longer use the word quack, but many still look askance at the osteopathic system of medical thought, which they feel lacks the intellectual rigor and the scientific underpinnings of their own practice.Elsewhere, he has remarked that osteopathic manipulative medicine (OMM) can be an aid to the physician in fostering a relationship with the patient, while also a source of skepticism to MDs.In 1998, a New York Times article described the increasing numbers, public awareness, and mainstreaming of osteopathic physicians, but said that "some aspects of osteopathic practice can still raise eyebrows among conventional doctors.In 2005, during his tenure as president of the American Association of Medical Colleges, Jordan Cohen described a climate of cooperation between DO and MD practitioners.In particular, he noted that suggestions that OMM could be used to treat diseases other than back problems, "reinforces lingering feelings among proponents of conventional medicine that osteopathy is simply a less intellectual field all around.Recent years have seen an increasingly cooperative climate between the DO and MD professions