function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albornoz-Garzón, Juan G. & Conde-Saldaña, Cristhian C.', 1],
    ['Baicere-Silva, Clarianna Martins & Ferreira, Katiane M.', 1],
    ['Bertaco, Vinicius A. & Malabarba, Luiz R.', 13],
    ['Bertaco, Vinicius A. & Malabarba, Luiz R. & Hidalgo, Max', 1],
    ['Roman-Valencia, Cesar & Ruiz-C, Raquel I. & Taphorn, Donald C.', 1],
    ['Sébastien Brosse & Fréderic Melki & Régis Vigouroux', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);