function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hielkema, Auke J. & Hielkema, Meindert A.', 53],
    ['Iorio, Osvaldo Di', 79],
    ['Kaneko, Naoki & Wada, Kaoru', 21],
    ['Mitter, H.', 21],
    ['Mitter, Heinz', 29],
    ['Orozco, Jesús', 67],
    ['Perissinotto, Renzo & Clennell, Lynette', 21],
    ['Polat, Alper & Yildirim, Erol & Uliana, Marco', 31],
    ['Ratcliffe, Brett C.', 72],
    ['Seidel, Matthias & Arriaga-Varela, Emmanuel & Sousa, Rafael', 29],
    ['Serrano, Artur R. M.', 83],
    ['Serrano, Artur R. M. & Capela, Rúben A. & Nunes, Telmo', 264],
    ['Shaughney, Jennifer Marie & Ratcliffe, Brett C.', 20],
    ['Smith, Andrew B. T.', 53],
    ['Ziani, Stefano & Bezděk, Aleš & Branco, Tristão', 25],
    ['Other (79)', 315]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1183)',
    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);