function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bernal, M. C. & Cairns, S. D. & Penchaszadeh, P. E.', 25],
    ['Buecher, Emmanuelle & Goy, Jacqueline & J, Mark & Gibbons', 25],
    ['Cairns, Stephen D. & Lindner, Alberto', 28],
    ['Cairns, Stephen D. & Zibrowius, Helmut', 30],
    ['Calder, Dale R.', 106],
    ['Calder, Dale R. & Choong, Henry H. C.', 27],
    ['Galea, Horia R.', 43],
    ['Gravili, Cinzia & Vito, Doris De & Camillo, Cristina Gioia Di', 47],
    ['Linnaeus, Carolus', 26],
    ['Maggioni, Davide & Schuchert, Peter & Arrigoni, Roberto', 15],
    ['OLIVEIRA, OTTO M. P. & MIRANDA, THAÍS P. & ARAUJO, ENILMA M.', 247],
    ['Peña Cantero, Álvaro L.', 17],
    ['Schuchert, Peter', 34],
    ['Schuchert, Peter & Collins, Richard', 33],
    ['ÁLVARO L. PEÑA CANTERO', 18],
    ['Other (71)', 265]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=986)',
    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);