At the same time, many trauma-focused psychotherapies evince high drop-out rates.Most systematic reviews and clinical guidelines indicate that psychotherapies for PTSD, most of which are trauma-focused therapies, are more effective than pharmacotherapy (medication), although there are reviews that suggest exposure-based psychotherapies for PTSD and pharmacotherapy are equally effective. Interpersonal psychotherapy shows preliminary evidence of probable efficacy, but more research is needed to reach definitive conclusions. Notes
References
This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 IGO Text taken from A Lifeline to learning: leveraging mobile technology to support education for refugees,  UNESCO, UNESCO. UNESCO. To learn how to add open license text to Wikipedia articles, please see this how-to page. For information on reusing text from Wikipedia, please see the terms of use. External links

Post-traumatic stress disorder at Curlie
Post traumatic stress disorder information from The National Child Traumatic Stress Network
Information resources from The University of Queensland School of Medicine
APA practice parameters for assessment and treatment for PTSD (Updated 2017)
Resources for professionals from the VA National PTSD Center
 Psychiatry portal
Choanal atresia is a congenital disorder where the back of the nasal passage (choana) is blocked, usually by abnormal bony or soft tissue (membranous) due to failed hole development of the nasal fossae during prenatal development. It causes persistent rhinorrhea, and with bilateral choanal atresia and obstructed airway that can cause cyanosis and hypoxia. Choanal atresia is diagnosed based on the inability to place a nasal catheter, and radiology results (particularly CT scans). Treatment involves maintaining an open airway, and may involve surgery to reopen the airway, potentially with a stent. Choanal atresia is a fairly rare condition, affecting between 1 in 7,000 to 1 in 5,000 live births. Presentation
Choanal atresia can be unilateral or bilateral. A unilateral choanal atresia may not be detected until much later in life because the baby manages to get along with only one nostril available for breathing. Symptoms are minor, including persistent rhinorrhea (mainly normal mucus) and chronic sinusitis. Bilateral choanal atresia is a life-threatening condition because the baby will be unable to breathe directly after birth as babies are obligate nasal breathers (they mainly use their noses to breathe). In some cases, this may present as cyanosis while the baby is feeding, because the oral air passages are blocked by the tongue, further restricting the airway. Cyanosis may improve when the baby cries, as the oral airway is used. These babies may require airway resuscitation soon after birth. Associated conditions
Choanal atresia is associated with a higher risk of other airway problems, including:

tracheomalacia. laryngomalacia.