function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alves, Tayná & Clarkson, Bruno & Lima, Lucas Ramos Costa', 1],
    ['Bird, Matthew S. & Bilton, David T. & Perissinotto, Renzo', 1],
    ['Clarkson, Bruno & Ferreira-Jr, Nelson', 7],
    ['Darilmaz, Mustafa C. & İncekara, Ümit', 1],
    ['Devi, M. Bhubaneshwari & Devi, O. Sandhyarani & Fikáček, Martin', 1],
    ['Giron, Jennifer C. & Short, Andrew Edward Z.', 3],
    ['Glynn, Rachel D. & Short, Andrew Edward Z.', 6],
    ['Jia, Fenglong & Tang, Yu-dan', 4],
    ['Minoshima, Yûsuke & Hayashi, Masakazu', 1],
    ['Sharp, David', 1],
    ['Short, Andrew E. Z. & Fikáček, Martin', 4],
    ['Smith, Rachel R. & Short, Andrew Edward Z.', 22],
    ['Takiya, Daniela Maeda & Santos, Allan Paulo Moreira', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=60)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);