To login to PubMed go to the login page
https://account.ncbi.nlm.nih.gov/?back_url=https%3A%2F%2Fpubmed.ncbi.nlm.nih.gov%2F
Click on the ORCID ID option and log in with your ORCID credentials.
Find out more about ORCID on our Open Access Publishing guide. Useful Open Access Resources - Open Access Research Publishing - HSE Library at HSE Library