function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bouchard, Patrice & Bousquet, Yves & Davies, Anthony E.', 1],
    ['Casari, Foreword from the editors Sônia A. & Biffi, Gabriel', 1],
    ['Costa, Cleide & Vanin, Sergio A. & Rosa, Simone P.', 3],
    ['Ferreira, Vinicius De Souza', 8],
    ['Jäch, Manfred', 1],
    ['Muona, Jyrki & Teräväinen, Marianna', 1],
    ['Oberprieler, Rolf G. & Ashman, Lauren G. & Frese, Michael', 2],
    ['Sanchez, Andreas & Chittaro, Yannick & Monnerat, Christian', 1],
    ['Westcott, Richard L. & Parsons, Gary L. & Johnson, Paul J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);