По моему мнению Вы ошибаетесь. Давайте обсудим это. Пишите мне в PM.
{there are|are|now there are|nowadays known} two {large|serious|basic|basic} types of stem cells: embryonic stem cells and stem cells of {adult|normal|able-bodied|working} {human|citizen|employee|specialist|expert}. {examples include Parkinson’s disease, Alzheimer’s disease, spinal cord injury, {diseases|diseases|ailments|ailments} {heart|cardiovascular system}, diabetes, #file_links[“C:\Users\Admin\Desktop\file\gsa+en+Georgiy5k10k20k40k2805254URLBB.txt”,1,N] treatment, and arthritis.