function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Buecher, Emmanuelle & Goy, Jacqueline & J, Mark & Gibbons', 60],
    ['Calder, Dale R.', 256],
    ['Calder, Dale R. & Choong, Henry H. C.', 111],
    ['Galea, Horia R.', 276],
    ['Galea, Horia R. & Maggioni, Davide', 62],
    ['Galea, Horia R. & Schories, Dirk', 56],
    ['Gravili, Cinzia & Vito, Doris De & Camillo, Cristina Gioia Di', 115],
    ['Linnaeus, Carolus', 71],
    ['OLIVEIRA, OTTO M. P. & MIRANDA, THAÍS P. & ARAUJO, ENILMA M.', 892],
    ['Peña Cantero, Álvaro L.', 77],
    ['Schuchert, Peter', 57],
    ['Schuchert, Peter & Collins, Richard', 89],
    ['Soto, Joan J. & Peña, Álvaro L.', 76],
    ['Watson, Jeanette E.', 88],
    ['ÁLVARO L. PEÑA CANTERO', 89],
    ['Other (166)', 1271]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=3646)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);