function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andrade, S C & Rossi, G D & Martinelli, N M', 1],
    ['Aoki, Camila & Lopes, Frederico Santos', 1],
    ['De Santis, Cecilia L. & Medrano, María Celeste', 1],
    ['Goding, Frederic W.', 2],
    ['Maes, Jean-Michel & Moulds, Max & Sanborn, Allen F.', 1],
    ['Martinelli, Nilza M. & Zucchi, Roberto A.', 2],
    ['Martinelli, Nilza Maria', 2],
    ['Martinelli, Nilza Maria & Zucchi, Roberto Antonio', 1],
    ['SUEUR, JÉRÔME', 1],
    ['Salazar E., Julián A.', 1],
    ['Sanborn, Allen F.', 24],
    ['Sanborn, Allen F. & Heath, Maxine S.', 2],
    ['Sanborn, Allen F. & Maes, Jean-Michel', 1],
    ['Scarpellini, José Roberto', 1],
    ['Zanuncio, José Cola & Pereira, Fabrício Fagundes', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);