Жаль, что сейчас не могу высказаться - тороплюсь на работу. Освобожусь - обязательно выскажу своё мнение.
BMC Journals are Evidence-based Nursing, what is a <a href=
https://topiccasestudy.com/>nested case control study</a>? Case studies are methodology of research used in many fields, including business, criminology, education, medicine and other forms of healthcare, anthropology, political science, psychology and social work.