function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barreto, Mauricio & Burbano, María E. & Proctor, Heather C.', 7],
    ['Buchholz, R.', 1],
    ['Chang, Hui-Qun & Wang, Zi-Ying & Liu, Huai', 4],
    ['Eren, Gökhan & Öztürk, Mehmet & Mironov, Sergey V.', 1],
    ['HALLIDAY, R. B.', 17],
    ['Hernandes, Fabio Akashi', 4],
    ['Mironov, S. V. & Dabert, J. & Ehrnsberger, R.', 2],
    ['Mironov, Sergey V.', 2],
    ['Pedroso, Luiz Gustavo A. & Hernandes, Fabio Akashi', 3],
    ['Reeves, Will K. & Durden, Lance A. & Ritzi, Christopher M.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    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);