H. Ratcliffe

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Primary lung cancers in birds and mammals of the Philadelphia zoo.

R. Snyder, H. Ratcliffe, 1966, Cancer research.

Changing Frequency of Arteriosclerosis in Mammals and Birds at the Philadelphia Zoological Garden: Review of Autopsy Records

H. Ratcliffe, M. Cronin, Herbert L. Ratcliffe, 1958, Circulation.

On the mechanics of droplet nuclei infection; quantitative experimental air-borne tuberculosis in rabbits.

W. Wells, H. Ratcliffe, C. Grumb, 1948, American journal of hygiene.

AGE AND ENVIRONMENT AS FACTORS IN THE NATURE AND FREQUENCY OF CARDIOVASCULAR LESIONS IN MAMMALS AND BIRDS IN THE PHILADELPHIA ZOOLOGICAL GARDEN *

H. Ratcliffe, 1965, Annals of the New York Academy of Sciences.

Editorial: Environmental Factors and Coronary Disease

H. Ratcliffe, 1963 .

Social factors and atherosclerosis.

H. Ratcliffe, 1974, Advances in cardiology.

Tumors in Captive Primates with a Description of a Giant Cell Tumor in a Chacma Baboon, Papio Porcarius

H. Ratcliffe, 1930 .

Incidence and Nature of Tumors in Captive Wild Mammals and Birds

H. Ratcliffe, 1933 .

FACTORS IN THE FREQUENCY AND TYPES OF CANCER IN MAMMALS AND BIRDS AT THE PHILADELPHIA ZOO *

R. Snyder, H. Ratcliffe, 1963, Annals of the New York Academy of Sciences.

Patterns of Disease, Controlled Populations, and Experimental Design

R. Snyder, H. Ratcliffe, 1962, Circulation.

Enzootic Toxoplasmosis in Caged Squirrel Monkeys Saimiri sciureus

A. Koestner, H. Ratcliffe, G. Mckissick, 1968, Pathologia veterinaria.

Spontaneous tumors in two colonies of rats of the Wistar Institute of Anatomy and Biology.

H. Ratcliffe, 1940, The American journal of pathology.

Toxoplasmosis of captive wild birds and mammals.

H. Ratcliffe, C. Worth, 1951, The American journal of pathology.

Developmental abnormalities and spontaneous diseases found in rats of the mutant strain, stub

H. D. King, H. Ratcliffe, 1941 .

A COMPARATIVE STUDY OF AMOEBIASIS IN MAN, MONKEYS AND CATS, WITH SPECIAL REFERENCE TO THE FORMATION OF THE EARLY LESIONS

H. Ratcliffe, 1931 .

Morphology and Life-cycle of an Amoeba Producing Amoebiasis in Reptiles

Q. M. Geiman, H. Ratcliffe, 1936, Parasitology.

Trichomonads from the Mouth of the Dog

R. Hegner, H. Ratcliffe, 1927 .

Trichomonads from the Vagina of the Monkey, from the Mouth of the Cat and Man, and from the Intestine of the Monkey, Opossum and Prairie-Dog.

R. Hegner, H. Ratcliffe, 1927 .

Apparent transfer of human hepatitis viruses to ducks.

J. Flick, H. Ratcliffe, 1961, American Journal of Pathology.

Marmota monax: a model for studies of cardiovascular, cerebrovascular and neoplastic disease.

R. Snyder, H. Ratcliffe, 1969, Acta zoologica et pathologica Antverpiensia.

The role of psychosocial factors in the development of arteriosclerosis in CBA mice. Observations on the heart, kidney and aorta.

J. Henry, D. Ely, A. P. Shapiro, 1971, Atherosclerosis.

Neoplastic Disease of the Pancreas of Snakes (Serpentes).

H. Ratcliffe, 1943, The American journal of pathology.

Familial occurrence of renal carcinoma in rhesus monkeys (Macaca mulatta).

H. Ratcliffe, 1940, The American journal of pathology.

Intravenous administration of gelatin and histologic changes in the kidney.

C. Koop, H. Ratcliffe, A. Michie, 1949, Archives of surgery.

TUBERCULOSIS INDUCED BY DROPLET NUCLEI INFECTION INITIAL HOMOGENEOUS RESPONSE OF SMALL MAMMALS (RATS, MICE, GUINEA PIGS, AND HAMSTERS) TO HUMAN AND TO BOVINE BACILLI, AND THE RATE AND PATTERN OF TUBERCLE DEVELOPMENT

H. Ratcliffe, V. Palladino, 1952 .

Shock disease in captive wild mammals.

J. J. Christian, H. Ratcliffe, 1952, The American journal of pathology.

The Relations of Endamoeba muris and Chilomastix bettencourti to the Diet and Intestinal Conditions of Rats.

H. Ratcliffe, 1929 .

A METHOD FOR OBTAINING A BREEDING STOCK OF RATS FREE FROM INTESTINAL PROTOZOA.

H. Ratcliffe, 1929, Science.

Myocardial Infarction: A Response to Social Interaction among Chickens

R. Snyder, H. Ratcliffe, Herbert L. Ratcliffe, 1964, Science.

Changes in the Character and Location of Arterial Lesions in Mammals and Birds in the Philadelphia Zoological Garden

H. Ratcliffe, T. G. Yerasimides, G. Elliott, 1960, Circulation.

Coronary Arterial Lesions in Chickens: Origin and Rates of Development in Relation to Sex and Social Factors

R. Snyder, H. Ratcliffe, 1965, Circulation research.

Diets for a Zoological Garden: Some Results During a Test Period of Five Years

H. Ratcliffe, 1940 .

Environmental factors and coronary disease.

H. Ratcliffe, 1963, Circulation.

Incomplete posterior duplication of the body (dipygus) in an albino rat

H. D. King, H. Ratcliffe, 1940 .

TUBERCULOSIS INDUCED BY DROPLET NUCLEI INFECTION

H. Ratcliffe, V. Palladino, Pt Ar~s, 1952, The Journal of experimental medicine.

Arteriosclerotic stenosis of the intramural coronary arteries of chickens: further evidence of a relation to social factors.

R. Snyder, H. Ratcliffe, 1967, British journal of experimental pathology.

THE SIGNIFICANCE OF NATURALLY OCCURRING CORONARY AND CEREBRAL ARTERIAL DISEASE IN ANIMALS *

D. Detweiler, H. Luginbühl, H. Ratcliffe, 1968, Annals of the New York Academy of Sciences.