function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Angulo, Arturo', 5],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 3],
    ['Bussing, William A.', 1],
    ['Conway, Kevin W. & Mateos, Mariana & Vrijenhoek, Robert C.', 1],
    ['Fowler, Henry Weed', 1],
    ['Hubbs, Carl L.', 1],
    ['Lucinda, Paulo Henrique Franco & Reis, Roberto E.', 3],
    ['Meyer, M. K. & Riehl, R. & Dawes, J. A. & Dibble, I.', 1],
    ['Miller, R. R.', 5],
    ['Regan, C. T.', 2],
    ['de Buen, F.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);