Here are some suggestions.There are a lot of famous doctors, who are noted not only in Lithuania but also in other
sEuropean countries. (Do you mean Lithuanian doctors?) The most famous (Lithuanian) doctor is Konstantinas Povilas Valuckas, who workhelped to rescue many people.
Thanks to your work is get many achievement in various fields of science.(This sentence is not understandable) As a result of his work was found
athe Institute of Oncology, Vilnius University.(Put the subject first: The Insitute of Oncology...) The doctor helped to introduce an electronic x-ray scan into oncology practice to diagnose thyroid, liver and kidney pathology. Also he with other doctors (With the help of other doctors he also createddiscovered muchvarious methods toof healing cancer.
K.P. Voluckas rescued a lot of people who were also ill with
oncology’soncological diseases too. His main trends of the scientific activity are cancer radiological diagnostics and radiotherapy, as well as combined treatment.
The doctor gained an international recognition for his work merits and got
aseveral awards. He is also well known oncologistin other countries such as Germany, Sweden, England, Japan, Russia, USA and others. Also he got a Maimano premium in 1993 and a Lithuania national premium.
He is a great expert in his field, therefore he shares his knowledge with others. Valuckas led to many scientific publications, programs, teach their younger colleagues, (I'm not sure what you mean here) who chose him to guide them not only because of his qualifications, but also
onfor his individual character traits such as: intelligence, a payment hearing.(??)
In conclusion, K.P. Valuckas helped to save a lot of people, and contended against cancer is easier. (I don't quite understand what exactly you meant by the last clause. Do you mean that cancer is easier to cure now because of the influence he brought as an innovator?)