Nurses’ Health Study (participants born in 1946 or earlier): nhs@channing.harvard.edu

Nurses’ Health Study II (participants born between 1946 and 1965): nhs2@channing.harvard.edu

Nurses’ Health Study III (participants born in 1966 or later): nhs3@channing.harvard.edu

(If you are not certain which study you are in, or if you have a general question, please send a message to any of these address and we will route it to the proper person.)