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# `langchain_community.document_loaders.pubmed`.PubMedLoader

class langchain_community.document_loaders.pubmed.PubMedLoader(query: str, load_max_docs: Optional[int] = 3)

  Load from the PubMed biomedical library.

  query

    The query to be passed to the PubMed API.

  load_max_docs

    The maximum number of documents to load.

  Initialize the PubMedLoader.

  Parameters

    - query (str) – The query to be passed to the PubMed API.

    - load_max_docs (Optional[int]) – The maximum number of documents to load. Defaults to 3.

  Methods

  `__init__`(query[, load_max_docs]) | Initialize the PubMedLoader.
  `alazy_load`() | A lazy loader for Documents.
  `aload`() | Load data into Document objects.
  `lazy_load`() | A lazy loader for Documents.
  `load`() | Load data into Document objects.
  `load_and_split`([text_splitter]) | Load Documents and split into chunks.

  __init__(query: str, load_max_docs: Optional[int] = 3)

    Initialize the PubMedLoader.

    Parameters

      - query (str) – The query to be passed to the PubMed API.

      - load_max_docs (Optional[int]) – The maximum number of documents to load. Defaults to 3.

  async alazy_load() → AsyncIterator[Document]

    A lazy loader for Documents.

    Return type

      AsyncIterator[Document]

  async aload() → List[Document]

    Load data into Document objects.

    Return type

      List[Document]

  lazy_load() → Iterator[Document]

    A lazy loader for Documents.

    Return type

      Iterator[Document]

  load() → List[Document]

    Load data into Document objects.

    Return type

      List[Document]

  load_and_split(text_splitter: Optional[TextSplitter] = None) → List[Document]

    Load Documents and split into chunks. Chunks are returned as Documents.

    Do not override this method. It should be considered to be deprecated!

    Parameters

      text_splitter (Optional[TextSplitter]) – TextSplitter instance to use for splitting documents. Defaults to RecursiveCharacterTextSplitter.

    Returns

      List of Documents.

    Return type

      List[Document]

# Examples using PubMedLoader

- PubMed

- pubmed.md