function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Belokobylskij, Sergey A.', 2],
    ['Cadena-Castañeda, Oscar J. & Garay, Andrea & Castañeda, Didier', 2],
    ['Ge, Jun-Jie & Agrippine, Yetchom Fondjo Jeanne & Xu, Sheng-Quan', 6],
    ['Hollier, John', 4],
    ['Hollier, John & Heads, Sam W.', 1],
    ['Monné, Miguel A.', 5],
    ['Olivier, Renan Da Silva', 4],
    ['Pocco, Martina E. & Cigliano, María Marta', 1],
    ['Qiu, Shaoting & Xu, Sheng-Quan & Huang, Huateng', 1],
    ['Yong, Sheyla & Perez-Gelabert, Daniel E.', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);