Gastrointestinal parasites in dogs 6 months old or younger sold in 18 pet stores in the great metropolitan area of Costa Rica. Ciencias Veterinarias [Internet]. 2012 Sep. 16 [cited 2024 Apr. 29];26(1):21-35. Available from: https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/4682