Cancer News. American Cancer Society.
Chicago Style (17th ed.) CitationCancer News. American Cancer Society.
ציטוט MLACancer News. American Cancer Society.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.
Cancer News. American Cancer Society.
Chicago Style (17th ed.) CitationCancer News. American Cancer Society.
ציטוט MLACancer News. American Cancer Society.