function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borges, Paulo A. V. & Gaspar, Clara', 4],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 6],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 6],
    ['Crespo, Luis C. & Boieiro, Mario & Cardoso, Pedro', 4],
    ['Dean, David Allen', 20],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 2],
    ['Gao, Cai-Xia & Li, Shu-Qiang', 15],
    ['Isaia, Marco & Paschetta, Mauro & Chiarle, Alberto', 4],
    ['Knoflach, Barbara & Rollard, Christine & Thaler, Konrad', 9],
    ['Lin, Yejie & Li, Shuqiang & Mo, Haolin & Wang, Xihao', 2],
    ['Lucien Berland', 3],
    ['Marusik, Yuri M. & Koponen, Seppo', 2],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 4],
    ['Ponomarev, Alexandr V.', 2],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 4],
    ['Other (16)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=103)',
    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);