function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aleffi, Michele & Tacchi, Roberta & Poponessi, Silvia', 1],
    ['Alegro, Antun & Šegota, Vedran & Rimac, Anja & Kiebacher, Thomas', 1],
    ['Bednarek-Ochyra, Halina', 2],
    ['Brinda, John C. & He, Si & Atwood, John J. & Magill, Robert E.', 1],
    ['Delgadillo-Moya, Claudio', 1],
    ['Eva Maier & Michelle J. Price & Terry A. Hedderson', 17],
    ['Feng, Chao & Kou, Jin & Wu, Ting-Ting & Zhang, Guo-Li', 1],
    ['Guerra, Juan & Cano, María J. & Martínez, Mónica', 17],
    ['Ivanets, Viktoria & Wierzgoń, Mariusz & Yevchun, Hanna', 2],
    ['Maier, Eva & Price, Michelle J.', 1],
    ['Maier, Eva & Price, Michelle J. & Hedderson, Terry A.', 24],
    ['Osman, Imen Ben & Hugonnot, Vincent & Muller, Serge D.', 2],
    ['Papp, Beáta & Pantović, Jovana & Sabovljević, Marko S.', 1],
    ['Price, Michelle J.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=75)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);