function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Liu, Ke-Ke & Ying, Yuan-hao & Fomichev, Alexander A.', 3],
    ['Sudhin, Puthoor Pattammal & Sen, Souvik', 6],
    ['Tang, Guo & Li, Shuqiang', 4],
    ['Trilikauskas, L. A.', 1],
    ['Trilikauskas, L. A. & Sergeev, M. E.', 1],
    ['Xu, Xiang', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);