function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Basu, Srimoyee & Subramanian, K. A. & Polhemus, Dan A.', 1],
    ['Berchi, Gavril Marius & Kment, Petr', 5],
    ['Cianferoni, Fabio', 2],
    ['Cianferoni, Fabio & Rocchi, Saverio & Terzani, Fabio', 2],
    ['Csabai, Zoltán & Soós, Nándor & Berchi, Gavril Marius', 1],
    ['Dursun, Ahmet & Fent, Meral', 2],
    ['Fent, Meral & Kment, Petr & Çamur-Elipek, Belgin & Kirgiz, Timur', 7],
    ['Heiss, Ernst & Eckelt, Andreas & Lederwasch, Manfred', 17],
    ['Jin, Zezhong & Fu, Siying & Ye, Zhen', 4],
    ['Khazaei, Zohreh & Polhemus, Dan A. & Tahami, Mohadeseh S.', 1],
    ['Kment, Petr & Kolínová, Zdislava', 13],
    ['Linnavuori, Rauno E.', 1],
    ['Norbiato, Margherita & Dioli, Paride & Cianferoni, Fabio', 1],
    ['Sakenin, H. & Samin, N. & Rastegari, J. & Havaskary, M.', 2],
    ['Taybi, Abdelkhaleq Fouzi & Mabrouki, Youness & Chavanon, Guy', 7],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=67)',
    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);