function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Camerik, Anne M. & Magowski, Wojciech Ł.', 6],
    ['Hajiqanbar, Hamidreza & Arjomandi, Elham', 3],
    ['Hosseininaveh, Farahnaz & Hajiqanbar, Hamidreza', 2],
    ['Katlav, Alihan & Hajiqanbar, Hamidreza & Talebi, Ali Asghar', 2],
    ['Khaoustov, Alexander A. & Homidov, Suhrob', 2],
    ['Khaustov, Alexander A.', 11],
    ['Khaustov, Alexander A. & Frolov, Andrey V.', 15],
    ['Khaustov, Alexander A. & Khaustov, Vladimir A.', 6],
    ['Khaustov, Alexander A. & Minor, Maria A.', 5],
    ['Khaustov, Alexander A. & Sazhnev, Alexey S.', 3],
    ['Khaustov, Alexander A. & Shentu, Hsuan & Ho, Chyi-Chen', 4],
    ['Khaustov, Alexandr A.', 10],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 5],
    ['Rahiminejad, Vahid & Hajiqanbar, Hamidreza', 7],
    ['Willmann, C.', 4],
    ['Other (10)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=99)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);