function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bolger, Thomas', 1],
    ['Ermilov, Sergey G. & Corpuz-Raros, Leonila', 1],
    ['ErmilovK, Sergey G. & Khaustov K, Alexander A. & JoharchiK, Omid', 1],
    ['Fischer, Barbara M. & Schatz, Heinrich', 1],
    ['Hushtan, Habriel H. & Hushtan, Kateryna V. & Glotov, Sergii V.', 2],
    ['Lindo, Zoë', 2],
    ['Norton, Roy A. & Ermilov, Sergey G.', 1],
    ['Ryabinin, Nikolay A. & Liu, Dong & Gao, Meixiang & Wu, Dong-Hui', 1],
    ['Weigmann, G. & Miko, L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    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);