function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Almeida, Marlus Queiroz & Salvatierra, Lidianne', 1],
    ['Dean, David Allen', 2],
    ['Denis Rafael Pedroso & Pedro de Souza Castanheira', 2],
    ['Drolshagen, Bastian & Baeckstam, Christian M.', 2],
    ['Drolshagen, Bastian & Bäckstam, Christian M.', 40],
    ['Dupérré, Nadine & Tapia, Elicio', 12],
    ['Dupérré, Nadine & Tapia, Elicio & Quandt, Dietmar', 9],
    ['Guadanucci, José Paulo L. & Fonseca-Ferreira, Rafael', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Passanha, Victor & Brescovit, Antonio D.', 30],
    ['Pedroso, Denis Rafael & Giupponi, Alessandro Ponce De Leao', 2],
    ['Schwendinger, Peter J.', 7],
    ['Schwendinger, Peter J. & Lehmann-Graber, Christina', 3],
    ['Schwendinger, Peter J. & Zamani, Alireza', 2],
    ['Schwendinger, Peter J. & Zonstein, Sergei L.', 3],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=121)',
    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);