efforts to achieve effective and meaningful patient and public involvement (ppi) in healthcare have existed for nearly a century, albeit with limited success. this brief commentary discusses a recent paper by carter and martin exploring the “challenges facing healthwatch, a new consumer champion in england,” and places these challenges in the context of the broader struggle to give a voice to h...

background and objectives: noise pollution has a high prevalence among the environmental pollutions and is considered as a teratogenic agent for reproductive system. this study was performed with the purpose of evaluation of the effect of honey and vitamin e on sex hormone levels in male rats exposed to noise pollution. methods: twenty-four adult male rats with the mean weight of 200±20g were r...

OBJECTIVES This randomized case-control study compares teachers with self-reported voice problems to age-, gender-, and school-matched colleagues with self-reported voice health. The self-assessed voice function is related to factors known to influence the voice: laryngeal findings, voice quality, personality, psychosocial and coping aspects, searching for causative factors of voice problems in...