function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barrion, A. T. & Litsinger, J. A.', 1],
    ['Biswas, Bijan & Roy, Rakhi', 2],
    ['Bosmans, Robert', 4],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 2],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 2],
    ['Danilov, S. N.', 3],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 2],
    ['Hayashi, Toshi', 3],
    ['Isaia, Marco & Paschetta, Mauro & Chiarle, Alberto', 2],
    ['Marusik, Yuri M. & Koponen, Seppo', 2],
    ['Mu, Yannan & Jin, Chi & Zhang, Feng', 11],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 2],
    ['Robert Bosmans', 2],
    ['Seo, Bo', 3],
    ['Zonstein, Sergei & Marusik, Yuri & Omelko, Mikhail', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=55)',
    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);