function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Glowska, Eliza', 2],
    ['Glowska, Eliza & Chrzanowski, Mateusz & Kaszewska, Katarzyna', 1],
    ['Glowska, Eliza & Laniecka, Izabella', 1],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 8],
    ['Maciej Skoracki & Maureen E. Flannery & Greg S. Spicer', 7],
    ['Nattress, Barry & Skoracki, Maciej', 1],
    ['Pidhorna, Svitlana Ya. & Chernychko, Kateryna J.', 6],
    ['Skoracki, Maciej', 21],
    ['Skoracki, Maciej & Bochkov, Andre V.', 4],
    ['Skoracki, Maciej & Hendricks, Sarah A. & Spicer, Greg S.', 7],
    ['Skoracki, Maciej & Hromada, Martin & Wamiti, Wanyoike', 3],
    ['Skoracki, Maciej & Khourly, Fares', 2],
    ['Skoracki, Maciej & Mironov, Sergey V.', 2],
    ['Skoracki, Maciej & Sikora, Bozena', 2],
    ['Skoracki, Maciej & Spicer, Greg S. & Oconnor, Barry M.', 19],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=90)',
    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);