![<p>Recruitment and inclusion procedures as “pain killers” in clinical trials?</p>]()
<p>Recruitment and inclusion procedures as “pain killers” in clinical trials?</p>Nothnagel, Helen; Menard, Martha Brown; Kvarstein, Gunnvald; Norheim, Arne Johan; Weiss, Thomas; Puta, Christian; Mist, Scott; Musial, Frauke · Journal of Pain Research · 2019