function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fischer, M.', 1],
    ['Fischer, M. & Tormos, J. & Pardo, X. & J. D', 5],
    ['Gadallah, Neveen S. & Ghahari, Hassan', 3],
    ['Ghahari, H. & Fischer, M. & Sakenin, H. & Imani, S.', 1],
    ['Papp, J.', 8],
    ['Papp, Jeno', 1],
    ['Peris, Francisco Javier & Papp, Jeno & Belokobylskij, Sergey A.', 7],
    ['Peris-Felipo, Francisco Javier & Belokobylskij, Sergey A', 20],
    ['Peris-Felipo, Francisco Javier & Belokobylskij, Sergey A.', 18]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=64)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);