function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bosmans, Robert & Henrard, Arnaud & Benhalima, Souâd', 19],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 13],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 8],
    ['Dankittipakul, Pakawin & Singtripop, Tippawan', 15],
    ['Dankittipakul, Pakawin & Tavano, Maria & Chotwong, Wimolwan', 7],
    ['Dean, David Allen', 12],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 16],
    ['Jäger, Peter', 11],
    ['Jäger, Peter & Dankittipakul, Pakawin', 14],
    ['Ono, Hirotsugu', 12],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 12],
    ['Wang, Luyu & Chen, Huiming & Wu, Panlong & Zhang, Feng', 13],
    ['Yu, Hao & Li, Shuqiang', 26],
    ['Yu, Hao & Zhang, Jianshuang & Chen, Jian', 8],
    ['Zhang, Jianshuang & Yu, Hao & Li, Shuqiang', 82],
    ['Other (51)', 125]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=393)',
    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);