function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Bosmans, Robert & Cardoso, Pedro & Crespo, Luis Carlos', 5],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 8],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 3],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 6],
    ['Duperre, Nadine & Harms, Danilo', 2],
    ['Irfan, Muhammad & Wang, Lu-Yu & Zhang, Zhi-Sheng', 7],
    ['Isaia, Marco & Paschetta, Mauro & Chiarle, Alberto', 3],
    ['Komisarenko, A. A. & Omelko, M. M. & Marusik, Yu. M.', 2],
    ['Li, Jian Yong & Liu, Jie & Chen, Jian', 22],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 3],
    ['Tanasevitch, Andrei V.', 14],
    ['Trilikauskas, L. A.', 2],
    ['Trilikauskas, L. A. & Sergeev, M. E.', 3],
    ['Zhao, Qingyuan & Li, Shuqiang', 4],
    ['Other (11)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=98)',
    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);