I express my sincere gratitude and appreciation to Albina Alexandrovna Lishchinskaya, a gastroenterologist of the highest category of the Moscow Clinical Research Center. Albina Alexandrovna is a doctor with a capital letter, no matter how pompous it may sound. I think many patients who have been treated by her will gratefully subscribe to my words. She always has an individual approach to everyone, a very attentive attitude and most importantly - a high degree of professionalism. Thank you heartily!